THE NEW B-CLASS FROM MERCEDES-BENZ

- Agile: space and dynamics abound

- Efficient: drive system with new engines and dual clutch transmission
- Safe: radar-based collision warning system as standard, PRE-SAFE® featuring for the first time
- Sensational: outstanding aerodynamics set a new benchmark in the segment

Substantially more agile and efficient, but as comfortable and spacious as ever – the new B-Class from Mercedes-Benz is a winner on all fronts. The vehicle's lower height and more upright seat position provide for a first impression that hints at the compact sports tourer's dynamic credentials.

With a new four-cylinder petrol engine featuring direct injection and turbocharging, a new diesel engine, a new dual clutch transmission, a new manual transmission and new assistance systems, the front-wheel-drive car also rings in a new technological era for compact cars from Mercedes-Benz. "No model change in the history of Mercedes-Benz has ever seen so many new developments introduced in one fell swoop," stresses Dr. Thomas Weber, Member of the Board of Management responsible for Group Research and Head of Development, Mercedes-Benz Cars. "Future B-Class customers will benefit from this quantum leap in terms of exemplary low fuel consumption and CO2 emissions combined with driving pleasure, plenty of space and the highest standard of safety that has ever been available in this class."

The world premiere of the new B-Class (length/width/height: 4359/1786/1557 millimetres) will take place at the Frankfurt International Motor Show (13 to 25 September 2011). It will be making its way to European dealers in November 2011.


The exterior design: perfect space in a most attractive guise

The new B-Class is a typical Mercedes sports tourer, offering plenty of space combined with impressive dynamic performance as a hatchback saloon. The characteristic lines of the exterior design indicate both of these attributes: front and rear sport a width-emphasizing design, with a wide, prominent grille and headlamps extending along the sides at the front while the rear end features a wide rear window, two-piece tail lights with horizontally offset meander and a large tailgate with low loading sill.

The new sportiness and the outstanding aerodynamics are particularly evident in the side line: the bonnet flows seamlessly into the A-pillar and the roof line descends sleekly to the striking roof spoiler. The roof features a swage line which lends the vehicle a longer appearance. The pronounced wheel arches offset by dynamic feature lines under the beltline are a sporty interpretation of the current design line from Mercedes-Benz. The bottom edge of the body features dynamic side skirts which add a light touch to the vehicle's appearance. Refined details such as the exquisitely designed headlamps with the new spotlight element confirm the brand's unmistakable premium credentials which shine through in the compact segment, too.


Outstanding aerodynamics: astounding cd value despite station wagon rear end

An outstanding drag coefficient of cd = 0.26 places the new B-Class at the forefront of its market segment. Apart from the aerodynamic exterior design, numerous optimisation measures on points of detail such as the air flow around the front wheels, the underbody design and the cooling air flow are also crucial contributory factors to this excellent aerodynamic performance. Patents are pending for innovative details such as the serrated wheel arch spoiler. With the optional ECO Technology package which will be available in due course, the B-Class is even on a par with the world-class aerodynamic credentials of the E-Class Coupé, attaining a drag coefficient of cd = 0.24 which is nothing short of sensational for a vehicle with a station wagon rear end.


New concept: lower overall height but more space inside

The new vehicle concept underscores the dynamic aspirations of the new B-Class. The most striking aspect is the reduced height: at 1557 millimetres, the new model crouches almost five centimetres lower on the road than its predecessor. The seat height in relation to the road has also been reduced (minus 86 mm) in order to facilitate boarding, while maintaining a clear overview of the vehicle's contours.

In response to requests from many customers, the sitting position is more upright, however. At the same time, the headroom has been further improved. With maximum headroom of 1047 mm at the front (without sliding roof), the B-Class is among the most spacious cars in its segment in this discipline, too. The ergonomically expedient more upright sitting position in combination with a lowering of the vehicle's floor at the rear leads to a segment-leading degree of legroom (976 mm) which even surpasses that of the S- and E-Class.

The B-Class is optionally available with the so-called EASY-VARIO-PLUS system. This enables simple reorganisation of the interior so as to enable the transportation of bulky items. Features of the EASY-VARIO-PLUS system include fore/aft adjustment of the rear seats by up to 140 millimetres (thereby increasing the luggage compartment volume from 488 to 666 litres) and a front passenger seat whose backrest can be folded forward onto the seat cushion.


The interior design: superior quality in a new dimension

High-quality materials and finely structured surfaces, stylish details, precision workmanship and a new spaciousness – the interior of the B-Class defines a whole new benchmark in the compact segment.

Many features have been the reserve of higher classes of vehicle to date and embody Mercedes-Benz's special definition of quality and aesthetics. The dashboard is optionally available in ARTICO man-made leather finish and features stitching, for example. Four equipment packages (Chrome, Sports, Exclusive and Night package) enable individualisation according to personal tastes.

In the interior, the large, three-dimensional trim covering the entire dashboard first strikes the eye. It is available in four variants, covering a broad spectrum from modern through sporty to classic. Common to all versions is a high-class appeal combining an attractive look and feel with easy care and durability.

The three large round vents in the middle and their uniquely designed cruciform nozzles add a sporty attribute to the interior's emotional design idiom. The display, which is available in two sizes (5.8- and 7-inch) appears to hover over the vents. With its stylish design – the trim frame with galvanised finish contrasting with the piano black of the front panel – and slender lines, the colour display (TFT) is a highly attractive feature in the cockpit.
The 3-spoke steering wheel, which always incorporates a silver chrome insert in the middle spoke, the instrument cluster with four analogue round dials and suspended pointers in 6 o'clock position and the seats with contrasting stitching underscore the sporty character.


The drive: designed for maximum efficiency

The new B-Class features new petrol and diesel engines as well as new manual and automatic transmissions. All transmissions and engines have been developed in-house, with production taking place at the plants in Stuttgart-Untertürkheim and -Hedelfingen, Rastatt/Baden, Gaggenau/Baden and Kölleda/Thuringia. The simultaneous development process enabled perfect coordination of engines and transmissions, e.g. with regard to implementation of the ECO start/stop function which features as standard on all B-Class models.

Common features of the new drive systems are the use of state-of-the-art technologies for maximum efficiency, very smooth running, high tractive power right from low revs, sustainability in terms of impending emissions standards and low weight. For the purposes of transverse installation the engines, all of which are turbocharged, and the two transmissions are very compactly designed, providing the B-Class with an exemplary small turning circle for a front-wheel drive vehicle of eleven metres. The engine and transmission suspension disposes of a four-point mounting system comprising engine mount, transmission mount and two self-aligning supports. This suspension system has been designed specifically to meet the requirements of the high-torque engines with regard to minimum noise levels. The hydraulic damping integrated in the transmission mount is a key contributory factor to the exceptionally high ride comfort.

The new four-cylinder petrol engines (internal designation M270) mark the launch of a completely new engine series. The combustion process is based on the third-generation Mercedes-Benz direct injection system which was introduced last year with the BlueDIRECT V6 and V8 engines. Its use in the B-Class marks this technology's debut in the compact segment. The new four-cylinder engines have been designed for both transverse and longitudinal installation. In the new B-Class they are initially available with a displacement of 1.6 litres, as the B 180 rated at 90 kW (122 hp) and the B 200 with an output of 115 kW (156 hp). Their maximum torque of 200 and 250 Nm respectively is available from an engine speed of 1250 rpm.


The new four-cylinder diesel engine is a further development of the OM651 deployed in the C- to the S-Class, a common rail direct-injection engine of the third generation. With its displacement scaled down to 1.8 litres and numerous optimised points of detail, this is the first time that the compression-ignition engine has been mounted transversely in a Mercedes-Benz car. The B 180 CDI generates 80 kW (109 hp) of power, while the B 200 CDI has an output of 100 kW (136 hp). The maximum torque stands at 250 Nm from 1400 rpm for the 80 kW variant and 300 Nm from 1600 rpm for the 100 kW variant.
Another Mercedes-Benz premiere is the new 7G-DCT dual clutch transmission in the B-Class. This transmission is extremely compact, extremely variable with regard to adaptation of the engine speed thanks to seven gears, features an electric oil pump for start/stop capability, shifts gear without any interruptions in tractive power and combines the comfort of an automatic with the efficiency of a manual transmission.

The new 6-speed manual transmission designed along similarly compact lines as a three-shaft transmission is a close relative of the DCT. Extremely easy gear shifting, low shift forces, low internal friction and a low weight are among its most important characteristics.


The chassis and suspension: refined sportiness now for the sports tourer, too

"Fascinatingly agile" is the assessment of all test drivers who have put the new B-Class through its paces to date. Three factors are instrumental to the substantially enhanced dynamic performance in comparison to its predecessor, which does not come at the cost of any compromises on comfort: the lowered centre of gravity, the new four-link rear axle and the upgraded ESP® Electronic Stability Programme. A sports suspension is optionally available for further enhanced agility. The centre of gravity has been lowered by a further 20 mm and the suspension additionally features sports dampers with amplitude-selective damping and a Direct-Steer system to emphasize the car's sporty character.


Steering: mechanical with electric assistance

The electromechanical steering of the B-Class has been redesigned. The electric motor of the servo assistance system is now located directly on the steering gear as a dual pinion EPS system, thereby optimising the package as a whole. A Direct-Steer system is available in combination with the sports package. The steering ratio becomes noticeably more direct at greater steering angles, enhancing the vehicle's handling and agility substantially.

The electromechanical steering system makes an important contribution to the vehicle's overall efficiency, as the steering assist function only requires energy when steering actually takes place.


New assistance and braking system reduces the risk of rear-end collisions

As a world first in the compact segment, the B-Class features a radar-based collision warning system with adaptive Brake Assist as standard, which lowers the risk of rear-end collisions. The COLLISION PREVENTION ASSIST system outputs a visual and acoustic warning to alert a possibly distracted driver to identified obstacles, and prepares Brake Assist for the most precise possible braking response. This is initiated as soon as the driver emphatically operates the brake pedal.

In contrast to systems currently on the market in the compact class, the new COLLISION PREVENTION ASSIST brake assist feature is not merely a system intended to minimise minor damage in urban traffic. Rather, this innovative solution is aimed at protecting motorists from typical rear-end collisions in dangerous traffic situations. Mercedes-Benz expects the new safety system to have a significant positive effect on accident statistics.

The democratisation of safety also encompasses an array of other assistance systems which have been adopted into the B-Class from the larger model series. These include:

. Adaptive Headlamp Assist
. Blind Spot Assist and Lane Keeping Assist
. ATTENTION ASSIST (standard)
. Speed Limit Assist (speed limit sign recognition)
. Active Parking Assist
. Brake HOLD function (standard with 7G-DCT)
. Hill Hold function
. LINGUATRONIC
Reversing camera
DISTRONIC PLUS


Premiere in the compact class: PRE-SAFE® available for the first time

The PRE-SAFE®preventive occupant protection system which features in the
B-Class is available for the first time in this vehicle category. This represents a further step in the ongoing democratisation of this innovation, which was premiered in the S-Class in 2002. Core features of PRE-SAFE®are reversible belt tensioning, the closing of side windows and sliding sunroof in case of critical lateral dynamics and adjustment of the fully electric front passenger seat with memory function to an ideal position for maximum effectiveness of the restraint systems. PRE-SAFE®is always activated in response to critical longitudinal and lateral dynamics and may also be triggered upon intervention by certain assistance functions.

The scope of restraint facilities takes special account of the B-Class' use as a family car. Great importance has been attached to the safety of the rear occupants. Belt tensioners, belt-force limiters and belt height adjusters come as standard on the outer seats. Rear sidebags are optionally available. Integrated child seats and automatic child seat recognition are available as in the predecessor. Driver and co-driver are provided with new pelvis bags which are able to cover the pelvis and the entire upper part of the body. For head protection, a windowbag is fitted as standard.


COMAND Online multimedia system with internet access

Internet access, the convenient LINGUATRONIC voice control system, two navigation solutions tailored to different budgets, connection for mobile audio devices and an intuitive operating concept – the information and communication systems in the
B-Class offers excellent user-friendliness and a superior level of functionality which has been the reserve of higher categories of vehicle to date. It is the new multimedia generation from Mercedes-Benz which delivers these standards. The operating concept featuring the turn/push control in front of the armrest and the control knob on the head unit is also familiar from other Mercedes model series.

The COMAND Online multimedia system offers internet access. Customers can either surf the web as they wish while the car is stationary or call up a Mercedes-Benz app whose particularly fast page loading and simple operation make it suitable for use while driving. Integrated apps include Google™ Local Search and Weather, and the facility for downloading a route which has previously been configured on a PC using Google Maps and transmitted to the car.


All set for the future: modular "Energy Space" concept

The modular "Energy Space" concept means that the new B-Class is already designed to accommodate versions with an alternative drive: appropriate interfaces in the body shell enable the main floor panel to be modified and a step to be produced for the versions with alternative drive. An underfloor compartment covering part of the area under the rear bench seat offers space for alternative energy accumulators.

source : Mercedes-Benz Press

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WIESMANN GT MF5

Every body remains at a state of rest unless forced to change as a result of external forces. In order not to stand still, we inevitably have to move. And anyone entrusted with a Wiesmann MF5 in this moment can turn physics into sheer pleasure. After all, this roadster is a powerful combination of power and style, and every encounter with the MF5 Roadster or GT MF5 becomes an unforgettable experience.

"In the MF5, we have developed the most powerful model in a series of classic sports cars in terms of design and technology. The secure aluminium monocoque, the extremely low weight, the powerful engine and the exclusive details pave the way for pure driving pleasure, which is exactly what we had in mind”

Friedhelm Wiesmann

The end of the curve debate

In maths a curve is a one-dimensional object that generally has a curve. In the GT MF5 a curve means three-dimensional driving pleasure. This sports car takes bends as they come: Masterfully and without debate.

It’s only a shame that Wiesmann doesn’t make roads as well.

The Interior

Instant mood enhancement

Is there any other sports car that amplifies driving pleasure quite so rapidly as the GT MF5? Probably not – which is why we don’t just refer to the car’s extraordinary dynamics. The cockpit design, too, is an impressive mood enhancer. Not least because you in the driving seat when it comes to choosing the leather, materials and manufacturing variants.

source : Wiesmann Press

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FERRARI 458 SPIDER (2013)

The new Ferrari 458 Spider joins the 458 Italia, widening the range of Ferrari's mid-rear engined V8s and offering the same uncompromising technological solutions, handling and performance in a refined open-top configuration. It is equipped with a Ferrari patented, fully retractable hard top, a world first for a sports car with this lay-out.

The 458 Spider is powered by Ferrari's naturally-aspirated, direct-injection 4.5 litre V8 which was nominated as the 2011 International Engine of the Year for its engineering excellence in terms of driveability, performance, economy and refinement. The power is transferred to the road by Ferrari's class-leading dual-clutch F1 paddle-shift transmission through the sophisticated E-Diff, itself integrated with the F1-Trac traction control and high-performance ABS for maximum handling dynamics.

Certain features, such as its accelerator pedal mapping and the damping of the multilink suspension, have been calibrated to guarantee maximum sportiness and absolute driving pleasure with the top down, in line with Maranello's exclusive spider tradition. Even the engine soundtrack has been honed to ensure that the car's occupants are completely captivated by the drop-top driving experience.

Entirely in aluminium, the hard-top solution adopted for the Ferrari 458 Spider offers a number of advantages over the traditional folding soft-top, including a reduction of 25 kg in weight and a deployment time of just 14 seconds. Fully integrated into the styling of the car, the hard-top was engineered to fit neatly ahead of the engine bay without compromising aerodynamics or the performance of the car. The small space needed to house the roof enables the designers to include a generous rear bench for luggage behind the seats.

The rear of the car is characterised by innovative forms with the buttresses designed to optimise the flow of air to the engine intakes and the clutch and gearbox oil radiators. For maximum comfort whilst driving top down the Ferrari 458 Spider features a generously-sized adjustable electric wind stop. The design was perfected to slow and diffuse the air in the cockpit, enabling normal conversation to be held even at speeds over 200 km/h.

New technical solutions adopted for the chassis guarantee identical levels of structural rigidity with the roof up or down. The result is a car that is truly exciting to drive, blending extreme performance with the responsiveness that has always characterised Ferrari's open-top berlinettas.

source : Ferrari Press

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MERCEDES-BENZ SLK55 AMG (2012)

The 2012 Mercedes-Benz SLK55 AMG is the most powerful SLK of all time. Its new AMG 5.5-liter V8 engine featuring cylinder shutoff combines the ultimate in performance with the lowest possible fuel consumption. With a peak output of 415 hp and maximum torque of 398 lb-ft, the 2012 SLK55 AMG is poised to outperform all of its direct competitors. High-performance driving is ensured thanks to the AMG sports suspension with Direct-Steer system, Torque Vectoring Brakes and 3-stage ESP®, as well as the AMG high-performance braking system. The 2012 SLK55 AMG will arrive in U.S. showrooms in early 2012.

Forming part of the third-generation of the SLK launched in June 2011, the new AMG model catches the eye at first glance: distinctive AMG light-alloy wheels, exclusive AMG body styling with AMG spoiler lip and two chrome-plated twin tailpipes at the rear complement the classic roadster proportions, while adding a distinct athletic touch. The expressive design of the 2012 Mercedes-Benz SLK55 AMG is both eye-catching and unmistakable.

The Mercedes-Benz SLK55 AMG is the perfect embodiment of the new AMG brand claim of "Driving Performance": in the compact high-performance Roadster segment there is nothing to compare to its combination of tangible driving dynamics, superior sportiness, unique high-technology and low fuel consumption. The SLK55 AMG accelerates from zero to 60 mph in 4.5 seconds, and reaches a top speed of 155 mph (electronically limited).

Helping to set new fuel efficiency standards for V8's, the 5.5 liter engine combines low consumption figures with superior power delivery and the typical exhaust growl which only a large-displacement eight-cylinder engine can produce.

In line with its "AMG Performance 2015" strategy, the new V8 engine continues to reduce both the fuel consumption and emissions of new models over the next few years - while reaching new heights with the central brand claim of "Driving Performance". At the same time, AMG is also demonstrating its social responsibility with the M152 engine.

New naturally aspirated eight-cylinder closely related to the V8 biturbo

The new M152 is based on the AMG M157 5.5-liter V8 biturbo engine presented in 2010, which powers the E63 AMG, CLS63 AMG, S63 AMG and CL63 AMG. Numerous design features are identical, such as the displacement, bore/stroke, distance between cylinders, ECO stop/start system and direct gasoline injection technology. Distinguishing features versus the M157 include the new intake air ducting, new cylinder heads, the modified valve drive, an adapted oil supply system and an optimized crankcase.

Exclusive combination of advanced technologies

The high-tech M152 motor dazzles with a combination of advanced technologies which is unequalled anywhere in the world. No other gasoline engine features direct injection at a pressure of 2,900 psi, spray-guided combustion and piezo injectors, all in conjunction with map-controlled cylinder shut-off, an all-aluminum crankcase with "spectacle" honing, fourvalve technology with continuous camshaft adjustment, a high compression ratio of 12.6:1, a stop/start system and generator management - while revving to a maximum speed of over 7,000 rpm. All of these features lead to high thermodynamic efficiency which is essential for high fuel efficiency and low exhaust emissions. Using a large-displacement, naturally-aspirated eight-cylinder engine with cylinder shut-off resolves the trade-off between high output/torque delivery and low fuel consumption figures.

AMG Cylinder Management

The AMG Cylinder Management cylinder shut-off system - developed completely by Mercedes-AMG - significantly improves efficiency: cylinders two, three, five and eight are cut off under partial load, which lowers fuel consumption considerably. In similar form, this technology is also used in the 750-hp V8 engines used in Formula 1. As efficiency also plays a major role at the pinnacle of motor racing, two or four of the eight cylinders are cut off e.g. when cornering at slow speed, during Safety Car laps or for pit stops.

The cylinder shut-off function is available over a wide engine speed range from 800 to 3,600 rpm if the driver has selected transmission mode "C" - Controlled Efficiency. The AMG main menu in the instrument cluster informs the driver whether cylinder shut-off is active, and whether the engine is currently running in four or eight-cylinder mode. No less than 170 lb-ft of torque is still available in four-cylinder mode - enough power to ensure plenty of acceleration in most driving situations. As soon as the driver has a need for more power and leaves the partial load range, cylinders two, three, five and eight are activated. The switch from four to eight-cylinder operation is immediate and imperceptible, leading to no loss of occupant comfort. At an engine speed of 3,600 rpm the activation process takes no more than 30 milliseconds.

Valves closed, fuel delivery and ignition deactivated

Cylinder shut-off is made possible by the intelligent engine management system, with 16 hydraulically compensating actuators and a sophisticated oil supply system in the cylinder head. The compensating actuators are integrated into the cylinder head, and keep the intake and exhaust valves of cylinders two, three, five and eight closed when cylinder shut-off is active. At the same time their fuel supply and ignition are deactivated. This not only enables the loadchange losses of the four deactivated cylinders to be reduced, but also increases the efficiency of the four remaining cylinders. This is because the operating point is transferred to the higher load range. The actuators are compact and lightweight, allowing taut valve train operation and engine speeds up to 7,200 rpm.

All-aluminum crankcase with Silitec cylinder liners

The crankcase of the new AMG 5.5-liter V8 engine features a diecast allaluminum construction. The low (dry) engine weight of just 412 lbs is the result of uncompromising lightweight construction methods. The bearing covers for the main crankshaft bearings are grey cast iron, and are bolted to the crankcase, as well as on the sides, for high rigidity.

The piston rings are carbon-coated to minimize internal friction and reduce wear. Cast-in Silitec cylinder liners ensure low friction for the eight pistons. Unique "Spectacle" honing is another measure to reduce friction and therefore fuel consumption: in this sophisticated and complex process, the cylinder liners receive their mechanical surface treatment when already bolted in place. As honing would no longer be possible with the cylinder head installed, a jig resembling spectacles is bolted to the crankcase. The cylinder liners distort as if the cylinder head were in place, and are only then given their mechanical surface treatment. As a result, any static distortion of the cylinder liners caused by tightening the cylinder head bolts can be completely eliminated.

Other measures to optimize efficiency:
•weight-optimized cast aluminum pistons with special piston skirt coating
•special ventilation holes in the crankcase
•oil pump with electrically controlled pressure stage
•separate oil pump for cylinder shut-off as a controllable, low-friction vane cell pump
•engine cooling using especially efficient cross-flow principle
•electronically controlled fuel pressure, fully variable and demand-related between 1,450 and 2,900 psi

The forged crankshaft of high-grade 38MnS6BY steel alloy rotates in five main bearings, has eight counterweights and has been optimized with respect to torsional rigidity, inertia, low rotating masses and a long operating life. A twomass viscous damper mounted at the front reliably eliminates vibrations. Each connecting rod journal on the crankshaft carries two forged, cracked connecting rods.

Four-valve technology with variable camshaft adjustment

Perfect charging of the combustion chambers is provided by large intake and exhaust valves, four per cylinder. The exhaust valves, which are subject to high thermal loads, are hollow and sodium-cooled. Four overhead camshafts operate the 32 valves via low-maintenance, low-friction cam followers. The infinitely variable camshaft adjustment within a range of 40 degrees on the intake and exhaust sides adapts to engine load and engine speed, leading to high output and torque values. This also provides consistent idling at a low speed. Depending on the engine speed, valve overlap can be varied for the best possible fuel/air supply to the combustion chambers and efficient removal of the exhaust gases. The variable camshaft adjustment is carried out hydraulically via four pivoting actuators. These are electromagnetically activated and controlled by the engine control unit. The camshafts are driven by three high-performance silent chains, which have considerable advantages in terms of noise comfort compared with cylinder roller chains.

Controlled Efficiency stop/start function as standard

The Controlled Efficiency stop/start function further contributes to the low fuel consumption. This system is standard equipment on the Mercedes-Benz SLK55 AMG and active in the fuel economy transmission mode "C". Once the driver brakes to a stop e.g. at a red traffic light, the V8 engine is automatically switched off. Once the brake pedal is released or the accelerator is depressed, the engine is immediately restarted and the car is able to move off quickly. Intelligent technology provides a comfortable and immediate starting procedure: a crankshaft sensor recognizes the direction of rotation and registers the resting position of all eight pistons. For an automatic engine start, the cylinder with the most favorable piston position receives an injection of fuel into its combustion chamber. The precise piezo-electric injectors greatly assist this process, as they make especially fast starts possible. The M152 always starts in eight-cylinder operation.

A framed "ECO" symbol in the AMG main menu shows the driver that the Controlled Efficiency stop/start function is active. When cylinder shut-off is active, the driver is informed by the symbol "ECO4", while "ECO8" stands for eight-cylinder operation. In the two more performance-oriented driving modes "S" (Sport) and "M" (Manual), the stop/start function is always deactivated. If required, the driver can also switch it off while in "C" mode as well. In this case neither a "stop/start" nor an "ECO" symbol appears.

Alternator management helps to save fuel

An alternator management system makes a further contribution to fuel economy: whenever the V8 engine is in overrun or when braking, kinetic energy is used to charge the battery rather than wasted as heat. In all other operating modes a combination of onboard network and alternator management enables the electrical system to be kept at a low voltage.

New AMG sports exhaust system with integrated exhaust flaps

AMG is premiering a new sports exhaust system featuring an exhaust flap on each side. This technology resolves the trade off between an emotional exhaust note during spirited driving and a more discreet engine sound in the partial load range. The main focus of the sound design was to achieve a perfect synthesis of perceptible performance and the long-distance comfort that is a hallmark of Mercedes.

Each of the two rear silencers has a flap which is variably activated on a logiccontrolled basis depending on the driver's power requirement and the engine speed. At low loads and engine speeds below 2,000 rpm the flaps remain closed. This causes the exhaust gases to cover a longer distance and flow through an additional damping element, so that the engine sound is pleasantly subdued and disruptive frequencies are effectively suppressed - resulting in a mellow tone especially in four-cylinder operation when cylinder shut-off is active.

When the driver accelerates, the flaps open at an angle of 15, then 30 and up to 50 degrees so that some of the exhaust gases cover a short distance while the remaining follow the longer, acoustically dampened path producing a sonorous engine note. Under full load at higher engine speeds in eight-cylinder mode, both flaps are fully opened so that the occupants are able to enjoy the distinct muscular sound typical of an AMG V8. This emphasizes the performance potential of the 415 hp naturally aspirated AMG eight-cylinder engine.

The two-pipe AMG sports exhaust system with two chromed twin tailpipes has a pipe diameter of 2.56 inches from the manifolds to the pre-silencer. The diameter is reduced to 2.36 inches from the pre-silencer to the rear silencers.

Effective emissions technology with new catalytic converter boxes

Low exhaust emissions, compliance with country-specific standards and a characteristic engine sound - the requirements for the exhaust system of the new, naturally aspirated AMG 5.5-liter V8 engine were multiple and complex. The 2012 SLK55 AMG complies with the current Euro-5 emission standard, as well as meeting all the requirements of the US market (LEV-III standard, On- Board Diagnosis II).

Air gap-insulated manifolds ensure a rapid catalytic converter response. For efficiency and to save space, this design has a tandem catalytic converter housing on each side of the vehicle: adjacent to the firewall, two thin-walled ceramic substrates are grouped into each housing. This setup makes the previous, additional underbody catalytic converters unnecessary. The two ceramic substrates differ to ensure rapid and efficient emissions control: the front one is coated with palladium, while the rear one has a bimetal coating of palladium and rhodium. One lambda sensor per row of cylinders is located in front of each catalytic converter housing, and there is a lambda diagnostic sensor between each of the two thin-walled substrates.

Highly variable: the AMG SPEEDSHIFT PLUS 7G-TRONIC

Power is transferred to the rear wheels by means of the AMG SPEEDSHIFT PLUS 7G-TRONIC automatic transmission which features three transmission modes: "Controlled Efficiency" (C), Sport (S) and Manual (M). The automatic rev-matching function when downshifting as well as the brief, precisely defined interruption of ignition and injection when upshifting under full load shorten shift times and increase emotional appeal. A double turbine torsional damper with centrifugal pendulum adapts to engine speed and helps minimize vibrations in four-cylinder operation as well as enhances comfort.

Perfect combination: highly expressive driving style and comfortable cruising

The AMG sports suspension with Torque Vectoring Brakes and AMG Direct- Steer system provides both impressive lateral dynamics as well as agile handling. Looking for a highly aggressive driving style or comfortable cruising? The new Mercedes-Benz SLK55 AMG is able to offer both. Independent suspension struts with stiffer spring/damper tuning, torque strut bearings on the front axle featuring higher rigidity, stiffer stabilizers at all four corners as well as a more negative camber on the rear axle result in high cornering speeds and low body roll in fast S-shaped bends.

In critical cornering conditions, the Torque Vectoring Brakes produce a defined rotational movement of the vehicle about the vertical axis in fractions of seconds, through selective brake actuation at the rear wheel on the inside of the bend. This results in the SLK55 AMG steering into the turn precisely and under full control, without any compromises where performance is concerned. Complementing this feature is the AMG Direct-Steer system which enhances handling and agility compared with the standard steering, while also reducing the amount of physical effort required when parking. A new power steering pump helps to reduce fuel consumption by using energy only when the driver is actually steering. In addition, the AMG Direct-Steer system has a parameter function adapted to match the AMG sports suspension. This results in optimum response from the central position, outstanding road feel and sharp handling in all driving situations.

The AMG-exclusive 3-stage ESP® gives individual control choices at the touch of a button: the ESP® button in the center console allows the driver to choose between "ESP ON", "SPORT Handling Mode" and "ESP OFF". The AMG highperformance brake system has internally ventilated and perforated brake discs on all wheels, measuring 14.2 in. x 1.4 in. at the front and 13 in. x .9 in. at the rear. The system is characterized by outstanding responsiveness, short stopping distances and excellent fatigue resistance.

Optional AMG Handling Package for even greater driving dynamics

The optionally available AMG Handling Package enhances the vehicle's sportiness even further. It comprises an AMG Performance suspension with stiffer tuning, an AMG rear axle differential lock, two-piece brake discs at the front and a three-spoke AMG Performance steering wheel finished in premium leather with Alcantara® inserts in the grip areas.

Unmistakable: uniquely styled design and appointments

Classic roadster proportions with typical AMG design characteristics as well as a hint of the SLS AMG -are striking visual highlights of the 2012 Mercedes-Benz SLK55 AMG. The AMG designers have complemented the exciting basic forms of the long hood, the greenhouse positioned well to the rear and crisp rear section with typical AMG styling at the front, sides and rear. The new AMG front apron has large air inlets and AMG-specific LED daytime running lights. Inspired by the SLS AMG super sports car, the wide radiator grill features a large, centrally-positioned Mercedes star. In the case of the SLK55 AMG, the slats in the front apron and the lower cross strut are painted in a high-gloss black finish. Darkened clear-lens headlamps and darkened bicolor tail lamps also come as standard exclusively on the top-of-the-range V8 model. Bi-Xenon headlights with Active Curve Illumination are also available as an optional extra.

The vent grilles with chrome-plated fins in the front fenders are not only reminiscent of the SLS AMG, but also evoke memories of the famous Mercedes-Benz 300 SL Roadster from the 1950s. The "V8 AMG" lettering beneath the grilles highlight the top-of-the-range eight-cylinder model from the rest of the SLK model series. AMG-specific, distinctively styled side sill panels continue the design of the front apron through to the new rear apron. With its own unique shape, black diffuser insert with three fins as well as the two chromeplated twin tailpipes of the AMG sports exhaust system, it gives a distinctive finishing touch to the vehicle. The spoiler lip on the trunk lid, painted in the vehicle body color, reduces lift at the rear axle and thereby increases driving stability at high speeds.

Inspired by the SLS AMG: high-quality, stylish interior

Functional, stylish, high-quality: the interior design of the Mercedes-Benz SLK55 AMG is also reminiscent of its bigger brother, the SLS AMG Roadster. Associations with the super sports car are evoked courtesy of the four air vents in the style of jet engines, as well as the center console finished in brushed aluminum. Placed in the center of the dashboard is an AMG-specific analog clock featuring an IWC design. The AMG Performance steering wheel, with its flattened top and bottom sections, also boasts metal trim, aluminum shift paddles and grip areas finished in perforated leather. The clearly-arranged AMG instrument cluster is positioned perfectly in the driver's field of vision and features four circular instruments, distinctive dials and the AMG main menu. The button for the transmission modes C, S and M is also located in the center console.

The AMG sports seats feature optimized lateral support and premium leather upholstery with AMG badges in the backrests and standard AIRSCARF necklevel heating system.

Magical: the panorama roof with MAGIC SKY CONTROL

The standard retractable hardtop opens and closes in less than 20 seconds, transforming the open-top Roadster into a closed-top Coupe with rigid roof at the touch of a button. Alternatively, a panorama roof panel in tinted polycarbonate can also be chosen. The third variant is a world premiere - the panorama roof with MAGIC SKY CONTROL. This glass roof switches to light or dark as required at the press of a button. When activated it is virtually transparent, offering an open-air experience even in cold weather. In its dark state the roof provides welcome shade and prevents the interior from heating up from the sun's intense rays. In other words: a comfortable atmosphere at the touch of a button.

The frames of the three roof variants are made of magnesium. This makes each roof around 13 lbs lighter than in the previous model, giving the car a lower center of gravity - which benefits its agility. A comfortable alternative to the standard wind-stop is the new AIRGUIDE pivoting wind-stop. It consists of pivoting transparent plastic wings which are attached to the back of the rollover bars. The advantage: no installation or removal effort required.

Exceptional position: modern assistance systems on board

The 2012 SLK55 AMG sets new standards when it comes to safety: a whole host of the latest assistance systems support the driver and help secure the new AMG Roadster's exceptional position in its segment. Standard equipment includes new, fiber-reinforced roll-over bar, two-stage driver and front passenger airbags, headbags, thorax airbags, knee airbags, seat belt tensioner with belt force limiters, NECK-PRO crash-active head restraints, three-stage ESP® and also ATTENTION ASSIST drowsiness detection.

Further assistance systems are available on request:
•DISTRONIC PLUS: this proximity control system automatically maintains a set distance from the vehicle ahead, braking the Mercedes-Benz SLK55 AMG to a stop if necessary and also accelerating the Roadster again.
•The PRE-SAFE® Brake detects the acute danger of a rear-end collision and prepares for autonomous braking. The system is active at speeds of between 19 and 124 mph when moving vehicles are detected in front of the car.

Three generations: the SLK made by AMG

The 2012 SLK55 AMG is already the third generation of the exclusively dynamic Roadster model made by AMG. It all started in 2001 with the SLK32 AMG. Its supercharged AMG V6 engine with a displacement of 3.2 liters produced 349 hp and maximum torque 332 lb-ft - as such, the SLK32 AMG was the most powerful vehicle among the competition.

At the end of 2004 this was followed by the Mercedes-Benz SLK55 AMG. With its AMG 5.5-liter V8 engine, which developed 355 hp and 376 lb-ft of torque, it also took the lead in its segment. No other vehicle in this class offers a large-displacement eightcylinder engine - and Mercedes-AMG has remained consistently true to this philosophy with the successor model. The new 2012 SLK55 AMG will celebrate its U.S. market launch in early 2012.

source : Mercedes-Benz Press

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CADILLAC CIEL CONCEPT

The Cadillac Ciel Concept - pronounced "C-L," the French translation for sky - is a four-seat convertible that opens a new chapter in Cadillac's design and product ascent, pushing the brand's Art & Science philosophy into a new stratum. Ciel is a new expression of Cadillac's historical grandeur, as well as a celebration of open-air motoring.

"Large, expressive luxury is innate to Cadillac and the Ciel recalls that heritage, while suggesting where the brand can go in the future," said Clay Dean, global design director for Cadillac. "Authentic luxury is driven by experiences, not just products, and Ciel is about the experience of the journey."

The spacious and elegant Cadillac Ciel Concept is a grand gesture that explores themes driving Cadillac's explorations into range-topping flagship luxury. It is powered by a twin-turbocharged version of the 3.6-liter Direct Injection V-6 engine, paired with a hybrid system using lithium-ion battery technology.

Coastal inspiration

Driving California's Highway 1 in an open car while the sun sets, from Big Sur north to Monterey, is the type of journey the Ciel team envisioned during its design.

"The Ciel is about the romance of the drive," said Dean. "It emulates the great touring cars seen on the greens at Pebble Beach, but with a modern flair that projects Cadillac's vision for the future."

The four-door Cadillac Ciel Concept embraces the social aspects of a recreational journey, with generous room for two couples. It evokes the spirit of the classics with a long, low proportion. The doors are French-style, with the rear doors hinged at the rear - there is no B-pillar - to reveal a sweeping view of the dramatic interior. Distinguishing fender lines run from nose to tail, and nickel-plated bright work accents the body lines, enhancing the visual length of the car and honoring Cadillac touring cars of the past.

Cadillac Ciel Concept's exterior flows seamlessly into the cabin, with the body color rolling over on top of the interior door panels. Like the exterior, the passenger space is accented with sweeping nickel-plated trim. It divides the body-color upper sections from a complementing beige lower color. Italian Olive wood, machined aluminum and hand-tipped leather are elements that flow through the interior, complementing the primary colors with warm, rich tones.

"There is authentic craftsmanship in the way the exterior and interior elements meld, much like a vintage wooden boat," said Gael Buzyn, interior design manager. "It is romantic, not only in its form, but the materials - nothing smells as good as real wood and leather. It blends together for a rewarding feeling of uncompromising luxury."

Cadillac Ciel Concept literally and figuratively reflects the driving experience along the California coastline. The Cabernet paint color, developed specifically for Ciel, is inspired by the rich translucence of a glass of red wine held up to the sunlight.

A prominent, polished aluminum windshield frame serves as in important structural element of the vehicle, as well as aesthetic one, recalling classic open cars of the past. Additional exterior cues, including a shield grille and vertical lighting elements, are pure Cadillac, but suggest a more organic interpretation of the brand's signature design language that emphasizes the artistic and natural sides of it. The body sides, for example, are more rounded, sweeping upward. Bright work is used to bring contrast to the deep paint color, but plays a more supporting role.

The car rides on large, beautifully finished wheels that feature brushed nickel plating over milled billet aluminum, matching the materials and appearance of other trim. Carbon ceramic brake rotors are visible behind the 22-inch rims, a visual clue to the Ciel's foundation of performance.

And owing to Cadillac's heritage of advanced technology, the headlamps and taillamps feature LED lighting elements - including a unique daytime running light graphic on the front of the vehicle that is generated with gradated LED lighting.

Elegant, authentic details

Simplicity, authenticity and spaciousness were the guiding principles when it came to developing the Cadillac Ciel Concept's interior.

"With the Ciel, the journey is the thing, so the interior is a place of uncompromising comfort and elegance, with technology that only makes the journey more enjoyable," said Buzyn. "Simplicity and lightness ensure nothing distracts from the open driving experience, while the color and materials lend the feeling that the vehicle's environment blends with the surroundings."

A wheelbase of 125 inches - about 12 inches longer than a CTS sedan - provides generous space. Luxurious seats are bisected by a "floating" center console that runs from the instrument panel to the rear of the interior. It effectively creates a very personal space for each passenger and houses access to hidden connectivity portals for each person in the vehicle - allowing them to make dinner reservations, check the weather at their destination or even upload photos of the trip via social media sights.

Simplicity is also the watchword with the Cadillac Ciel Concept's instrument panel, which features a minimalist gauge cluster that doesn't impede or distract from the outward view. But while reserved in its form, it exemplifies Cadillac's attention to details and its priority on authentic materials. The climate vents, for example, are mostly hidden and their airflow is distributed indirectly.

Transparent gauges deliver their information within a detailed, brushed-aluminum housing that has the intricate depth of a high-quality chronograph. They offer dual readouts - analog and digital - as well as an information hierarchy. Additional interior features include:
•Sloping bolsters on the seats that allow passengers to slide into the seats more comfortably
•A personal device storage area on the front of the console with inductive charging and Bluetooth connectivity
•A power-assisted transmission shifter that deploys as soon as the engine is started
•Lighting in the armrests that combines a natural light well for daytime driving and ambient lighting for nighttime drives
•Door storage areas that are inspired by premium fashion accessories and open with high-quality zippers
•Pull-out blankets are available for all three passengers and retract automatically
•All the seats have heating and cooling features, along with a drawer containing sun lotion, sun glasses and towels, as well as aromatherapy that is controlled from the rear armrest.

But perhaps the defining element of the Ciel's cabin is the incorporation of Italian Olive wood on the doors, instrument panel, console and the front seatbacks, adding warmth and craftsmanship to a car designed to provoke an emotional response.

"Milled solid wood delivers richness and a sensual feeling of authenticity in the visual impact of the grain, its feel and aroma, which a veneer simply cannot," said Buzyn. "Even in our high-tech, connected world, luxury customers crave touches of old-world craftsmanship - the Cadillac Ciel Concept simply reflects that with a blend of the latest technology."

Italian Olive wood is a premium yet sustainable material and the material used in the Ciel came from a single fallen and recycled tree, from a west coast producer of premium olive oil. It was painstakingly prepared, including drying in a kiln, before it was cut for the concept vehicle. The numerous pieces were then photographed so that the grain could be matched precisely. Each component was hand-milled and finished by expert woodworking craftsmen.

The rear seating area is detailed with elegant flourishes. The rear seat passengers can pull a leather tab, which reveals a cashmere blanket that stretches across the seating area to ward off a chill. The wood trim in the rear center console opens to reveal a small humidor, stocked with a few cigars.

"From the materials used to create it to the space and experience it offers passengers, the Cadillac Ciel Concept represents a unique perspective on luxury, but not the only one," said Dean. "Along with other concepts, such as the ULC, Cadillac is demonstrating that the bandwidth of the Art & Science philosophy is wide, indeed - and we're going to make it even wider."

The Cadillac Ciel Concept was developed at GM Design's North Hollywood Design Center, which is managed by Frank Saucedo. Niki Smart was the lead exterior designer, with Buzyn leading interior development.

source : Cadillac Press

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JEEP GRAND CHEROKEE SRT8 (2012)

- Offers unique blend of legendary Jeep® capability and utility, head-turning SRT performance, luxury and refinement, and innovative advanced technologies

- Best performing Jeep® vehicle ever: 0-60 mph in 4.8 seconds; quarter mile in
mid-13 second range; top speed of 160 mph; 60-0 mph braking in 116 feet
- Most powerful Jeep vehicle ever with all-new 6.4-liter HEMI® V-8 that delivers 470 horsepower and 465 lb.-ft. of torque
- Best handling Jeep vehicle ever features advanced new adaptive damping suspension managed by new Selec-Track system, delivering up to .90 g on the skid pad
- New active valve exhaust system allows standard Fuel Saver Technology to engage over a wider rpm range for a 13-percent improvement in highway fuel efficiency and 450-mile range
- New, exclusive SRT heated steering wheel features mounted paddle shifters for hands on the wheel shifting both on road and at the race track
- New 19-speaker Harman Kardon® audio system, with innovative GreenEdge® technology, is available with 825 watts of power
Newly formed SRT brand led by President and CEO Ralph Gilles will continue to build benchmark high-performance vehicles for the Chrysler Group

Auburn Hills, Mich. - The most powerful, technologically advanced, high-performance Jeep® vehicle ever – the all-new 2012 Jeep® Grand Cherokee SRT8® – arrives later this summer with a combination of Jeep’s legendary capability and utility, merged with the renowned advanced performance engineering from Chrysler Group LLC’s Street and Racing Technology (SRT) team.

Delivering outstanding driving performance in all conditions, and complemented by key SRT attributes – including functional, performance-oriented styling, world-class ride and handling, benchmark braking and race-inspired interior appointments – the 2012 Jeep Grand Cherokee SRT8 broadens the Jeep vehicle lineup and builds upon the successful launch of the award-winning 2011 Jeep Grand Cherokee.

“The all-new 2012 Grand Cherokee SRT8 is the ultimate performance SUV, delivering a combination of Jeep capability and utility, world-class performance, luxury and refinement, and advanced innovative technology,” said Mike Manley, President and CEO — Jeep Brand, Chrysler Group LLC. “Jeep vehicles have long been known for their off-road capability. In addition to Jeep four-wheel-drive traction and utility, the Grand Cherokee SRT8 takes capability to a new level by giving driving enthusiasts extreme performance for the street and track.

“Our new benchmark performance SUV effectively broadens the Grand Cherokee portfolio, and will continue to draw new customers into Jeep showrooms,” Manley added.

Designed and built using the proven SRT formula that raises the performance to astonishing levels, the new 2012 Jeep Grand Cherokee SRT8 runs from 0-60 mph in 4.8 seconds, 0-100-0 mph in the mid-16 second range, can cover the quarter mile in the mid-13 second range, has a top speed of 160 mph, and brakes from 60-0 mph in 116 feet.

Awe-inspiring powertrain

Powering the 2012 Jeep Grand Cherokee SRT8 is Chrysler Group’s all-new 6.4-liter HEMI® V-8 with Fuel Saver Technology that delivers 470 horsepower (351 kW) and 465 (630 N•m) lb.-ft. of torque – an improvement of 50 horsepower and 45 lb.-ft. torque over the 6.1-liter HEMI V-8 it replaces.

An active intake manifold and high-lift camshaft with cam phasing delivers maximum low-end torque while optimizing high-end power across a wider and improved rpm band. Specifically, 90-percent of peak torque is available between 2,800 and 6,000 rpm, allowing for inspired standing starts and improved straight-line performance.

Standard Fuel Saver Technology and a new-for-2012 active valve exhaust system allows four-cylinder operation to engage over a wider rpm range, to deliver both improved fuel efficiency – a 13-percent increase on the highway – and an extended range of 450 miles on one tank of gas.

Standard steering wheel mounted paddle shifters join the standard Auto Stick on the floor. Both are mated to a proven automatic transmission, allowing a choice of spirited shifting on the road and the race track. Both methods give the driver the ability to shift while the transmission controller calibration prevents situations that might over rev the engine. Fully adaptive electronic control of all shifting makes the powertrain more responsive while minimizing harshness.

Outstanding ride, handling and capability

For 2011, all Jeep Grand Cherokee models boast an improved and refined on-road ride thanks in part to the vehicle’s body structure. Torsional stiffness was improved 146 percent versus the previous model, for improved ride, durability and reduced noise, vibration and harshness. The improvement is achieved with more than 5,400 welds in the body alone, marking a 53-percent increase in spot welds, a 42-percent increase in arc welds and a 38-percent increase in structural adhesive.

With the new 2012 Grand Cherokee SRT8, engineers have improved handling even further.

The best handling Jeep vehicle ever – capable of .90 g on the skid pad – features a new SRT-tuned, adaptive damping suspension managed by the new Jeep Selec-Track system that interacts with several different systems (stability control, adaptive damping, transmission shift strategy, transfer case torque proportioning, Electronic Limited Slip Differential performance, throttle control and cylinder de-activation) to automatically tune the dynamics of the vehicle. Drivers can manually choose between five dynamic modes for specific driving conditions:

Auto: provides the most compliant ride and automatically adapts to any road situation using the adaptive suspension tuning
Sport: provides enhanced body control for a sporty, fun-to-drive ride for the street
Tow: provides a safe reduction in pitch and bounce for enhanced towing capability
Track: provides the high-performance, firm, “track-tuned” suspension option to lock down body motion for the ultimate handling experience
Snow: provides the most conservative dynamic mode, so the vehicle will safely stay
in-line in inclement winter weather conditions

The standard Jeep Quadra-Trac active on-demand four-wheel-drive transfer case uses input from a variety of sensors in order to determine tire slip at the earliest possible moment and take corrective action. The system uses Throttle Anticipate to sense quick movement in the throttle from a stop and maximizes traction before slippage occurs. When tire slippage is detected, the Jeep 4x4 system can transfer up to 100 percent of available torque to one rear wheel.
The transfer case also enhances handling by proportioning torque between the front and rear axles to maintain the driver’s intended path. The new Grand Cherokee SRT8 also features an Electronic Limited Slip Differential, which eliminates rear wheel slip and improves handling.

The performance-tuned, fully-hydraulic steering system is improved with a new, heavy-duty pump and pump cooler. Revised gearing gives drivers more direct feel and on-center response.

New split 5-spoke, 20-inch forged aluminum wheels ride on P295/45ZR20 Pirelli Scorpion Verde All Season run-flat tires or available Pirelli P Zero Three-season.

Rounding out the capability of the 2012 Jeep Grand Cherokee SRT8 is a trailer tow rating of 5,000 lbs.

Benchmark braking

Chrysler Group’s SRT vehicles are well known for their world-class braking. Stopping power for the 2012 Grand Cherokee SRT8 comes courtesy of new SRT high-performance Brembo brakes with four-wheel anti-lock brake system (ABS).

Stopping distance performance of 116 feet from 60-0 mph is made possible by new red-painted, Brembo 6-piston (front) and 4-piston (rear) calipers, and vented rotors at all four corners measuring 15-inches (front) and 13.8-inches (rear).

Aggressive and functional exterior

The functional performance exterior of the 2012 Grand Cherokee SRT8 features the “planted” look of a high-performance sports car by being lowered 1 inch and adding new, SRT-exclusive, body-color wheel flares and side sill cladding.

A one-piece front fascia contains new LED multi-function daytime running lamps that result in an exclusive face for the new Jeep Grand Cherokee SRT8, while a body-colored front grille with a unique black screen background and chrome bezel inserts adds to the aggressive look.

The integrated lower front grille is painted in gloss black and a newly designed underbody belly pan features integrated brake ducting to improve cooling and fade performance. Completing the new front end is a newly sculpted hood with functional dual black heat extractors for added engine cooling.

At the rear, the SRT performance influence continues with a new liftgate spoiler that reduces drag and improves downforce. A unique one-piece rear fascia includes a separate air diffuser along with an available trailer receiver and access cover. New for the 2012 version of the Grand Cherokee SRT8 is the dual-sport exhaust system featuring 4-inch exhaust tips.

Race-inspired and high-performance interior

The 2012 Jeep Grand Cherokee’s refined, luxurious interior takes on a performance feel in SRT8 form with race-inspired technology and SRT-exclusive appointments.

An all-new, leather-wrapped, heated steering wheel features a unique satin chrome rim section with a flattened bottom surface – evoking a race-inspired cockpit – that showcases the SRT logo. Standard paddle-shift controls flank both sides of the new contoured palm rests while all audio and Electronic Vehicle Information Center (EVIC) controls are accessible from the horizontal spokes on the steering wheel. A power tilt and telescoping steering column also is standard.

SRT-exclusive Performance Pages are new for 2012 and show instant feedback on steering input measurements, horsepower, torque, 0-60 mph time, 60-0 mph braking distance, g-forces, and one-eighth mile and quarter-mile times, along with expanded engine information.

New SRT-styled Nappa leather and suede seats, with sculpted bolsters and adjustable headrests, provide all the comfort for daily drives – and “grip” to keep the driver and passengers in place during spirited driving. The embroidered SRT logos and contrast stitching accent the two front seats. Heated (front and rear) and ventilated (front) seats are standard.

Carbon fiber accents are integrated into the instrument panel and door trim panels and new bright, racing style brake and pedal pads add to the high-performance look inside the cabin.

An available Command View® dual-pane sun roof provides twice as much glass surface than a standard sun roof and extends from the windshield to the rear of the vehicle.

The available Luxury Group package adds premium leather to the door trim panels, instrument panel and center console along with a power liftgate, adaptive cruise control, Forward Collision Warning and Blind-spot Monitoring.

Connectivity and Infotainment

A wide variety of easy-to-use infotainment options are available with features that provide customers with seamless integration of consumer electronics, delivering drivers and passengers the conveniences of home and office.

Premium navigation and SIRIUS Travel Link are standard with the 730N Media Center CD/DVD/MP3/HDD radio. Also standard are a multitude of features including SIRIUS Satellite Radio and Uconnect Phone.

The available Vehicle Entertainment System (VES) includes a DVD player and rear seat overhead screen that deliver a variety of programming choices, with ports to connect games and media players with audio and video output capability, including iPod® connectivity. The Media Center or the VES remote can control multiple screen inputs and each screen can play something different.

New for 2012 is the available 825-watt, 19-speaker premium SRT performance audio surround-sound system from Harman Kardon®. The system offers world premier innovation, featuring a 32-volt TPS (Tracking Power Supply) 12-channel Class D amplifier that delivers outstanding acoustics and brings multi-dimensional, quality sound for all interior occupants.

The new system uses GreenEdge® speaker and amplifier technology to offer superior sound quality and high Sound Pressure Level outputs with minimum energy consumption. GreenEdge amplifiers alone outperform traditional amplifier efficiency by up to 55 percent, representing a net efficiency of more than 90 percent in some cases. The speakers are tuned for maximum efficiency and perfectly matched to the amplifier output.

The system’s 19 GreenEdge high-efficiency speakers include nine tweeters, five mid-range speakers, two mid-woofers and three subwoofers located throughout the interior.

SRT Track Experience

Owners of any Chrysler Group SRT vehicle receive one day of professional driving instruction from the Richard Petty Driving Experience as part of the SRT Track Experience, designed to maximize their driving knowledge and skills on the street or track. Sessions are held throughout the year at selected tracks.

source : Jeep Press

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