Mercedes-Benz A-Class, 2013

 

 

 

 

 

 

 

• Mercedes-Benz A-Class, 2013

The new Mercedes-Benz A-Class is opening up a new chapter in the compact segment: markedly emotive in design, with powerful engines ranging from 80 kW (109 hp) to 155 kW (211 hp), extremely efficient with emissions from just 98 g of CO2/km and a best-in-class drag coefficient of 0.27. At the same time the new model underlines that for Mercedes-Benz, safety is not a question of price - the standard specification includes, amongst other things, the radar-based COLLISION PREVENTION ASSIST system. Prices in Germany start at €23,978.50 (incl. 19% VAT) for the A 180 BlueEFFICIENCY.

Exterior design: The most progressive design in the compact class
Standing as much as 18 centimetres lower on the road than the preceding model, the new A-Class communicates design and dynamism at the very first glance. This radical form language, presented and enthusiastically acclaimed around the world with the A-Class Concept, was consistently implemented in the series production car. The appearance of the new Mercedes-Benz A-Class reflects this new Mercedes-Benz design strategy. The result is what is known as a two-box design with a distinct character of its own, a sportily emotive exterior and an exceptionally high-quality feel to the interior.

Defined edges and tautly drawn surfaces mark out the exterior design of the new A-Class. The constant interplay between concave and convex surfaces creates a characteristic play of light, particularly along the sides of the car, which contributes to its unique appearance.

Typical features of the long, sporty front are its pronounced V-shape, the separate headlamps, the radiator grille with central Mercedes star and double slats to either side of the star, as well as the additional air intakes on the sides. The "dropping line" apparent in the side profile dissipates towards the vehicle's front end. The design of the headlamps, together with the configuration of the light functions within them, are a key element of the design concept.

The light modules and LEDs behind the headlamp cover glass have been arranged in such a way as to create the characteristic "flare effect" for the daytime driving lights and indicators. The so-called "flare" is made up of the feature line within the headlamp, the LED modules for the daytime running lamps and the bulb sets for the indicators. This signature effect gives the car its energetic look and so helps to define a new, youthful face for Mercedes.

The perfect interplay of dynamic design and excellent aerodynamics is nowhere more apparent than in the roof, with its smooth surfaces and taut, arcing curve. The silhouette reveals smooth, flowing lines finishing in a flat edge. The roof spoiler, which conveniently hides all the aerials, provides an extra sporty touch and gives structure to the roof assembly. The beltline rises to the rear to form a pronounced wedge-shape. The side view is distinguished by sensuously moulded sculptural side panels and crisp lines. The front structural edge, above the wing, falls in what is known as a "dropping line" in a gentle arc towards the rear. The powerfully-shaped shoulder muscles above the rear axle serve to emphasise the car's coupé-like character. A further line sweeps up from just in front of the rear wheel arch, then gently fades away. All these lines give depth and dynamism to the car's profile. Dynamic side sill panels provide a final finishing touch towards the bottom of the car, enhancing the appearance of elegant light-footedness.

The broad emphasis of the tail end is revealed in an interplay of convex-concave surfaces and edges. The tail lights continue the line of the muscular shoulders back towards the rear, while their horizontal orientation emphasises the car's powerful breadth. The light functions are provided optionally by fibre-optic cables and LED modules. Here, too, the interaction between design and aerodynamics is very clear: the surface finish of the tail lights is not only an interesting design feature, but also improves the airflow around the vehicle thanks to defined airflow break-away edges in the rear section.

Interior design: Extraordinary perceived value
The starting point for the interior design was the interior sculpture "Mercedes-Benz Aesthetics No. 2" presented at the Detroit Motor Show in 2011 and which directed attention to the new Mercedes-Benz design language in the vehicle interior, too. The first concrete implementation of this was shown in April 2011 with the A-Class Concept.

The process used for the production of this muscle allows diverse soft surface textures. It is thus possible to create different surface appearances with an attractive play of lights thanks to three-dimensional structures embedded in foil.

The instrument panel incorporates five round vents. "Like brilliant jewels they underscore the superior quality of the vehicle interior", explains Kaul. The outer rings of the round vents have a high-quality electroplated finish. The airflow direction is governed by an insert that is reminiscent of an aircraft turbine and reveals a meticulous attention to detail. This too has an electroplated finish in silver-chrome. The free-standing display screen features a black piano-lacquer-look front panel and a flush-fitting silver frame.

The instrument cluster comprises two large round instruments, each with a small dial set within it. When at rest, the dial needles stand at 6 o'clock. The pointer inlays are in white, although with the sportier design and equipment lines such as Urban and AMG Sport they are in red. The dials on the sporty equipment lines and packages are coloured silver with a chequered flag effect. The 3-spoke steering wheel comes with 12 function buttons and an electroplated bezel.

The centre dome and console, as well as the positioning of the various elements such as the head unit, lower control panel, air conditioning operating unit, stowage compartments, rotary pushbutton and armrest, reflect the findings of the ergonomics experts at Mercedes-Benz.

An extensive range of seat coverings, in terms of material (e.g. leather, fabric, ARTICO/fabric), colour combination and also geometry, provides scope for a broad range of individualisation options. Sports seats with integrated head restraints are available with all optional design and equipment lines. The sporty nature of the seats is emphasised by the opening between the upper edge of the seat backrest and the head restraint. On the back of the front seats this opening is edged with a frame in silver chrome and, in conjunction with the Light and Sight package, can also feature ambient lighting.

Designer Jan Kaul sums up: "If you were to take a seat in the A-Class with your eyes closed - you would never think, upon opening your eyes, that you were sitting in a compact-class vehicle."

The chassis and suspension: Agility and refined sportiness
Refined sportiness means maximum agility combined with the sense of safety, unspoilt driving stability and high levels of ride comfort which are all typical of the brand. The suspension of the new Mercedes-Benz A-Class has a four-link rear axle, electromechanical power steering with assistance functions and ESP® with "Extended Traction Control" (XTC). During development, the suspension experts made intensive use of simulations and the driving simulators at the Mercedes development centre in Sindelfingen as part of the so-called digital ride and handling test.

The preconditions for achieving dynamic handling are excellent in the Mercedes-Benz A-Class. This is because compared with its predecessor the centre of gravity (24 mm lower) and seating position (174 mm lower) has been reduced significantly. A new feature is the four-link rear axle: forces are absorbed by three control arms and one trailing arm per wheel. This means that longitudinal and lateral dynamics are virtually independent of one another. Wheel carriers and spring links are made of aluminium to reduce the unsprung masses. The goal was to achieve high lateral agility with high driving stability thanks to small sideslip angle on the rear axle.

Three chassis and suspension set-ups are available: the comfort suspension and optional sports suspension for sporty yet comfortable handling (in conjunction with the Dynamic Handling package or the AMG Sport equipment line). In addition, the A 250 Sport has a sporty, "engineered by AMG" high-performance suspension. Altogether this results in low dynamic rolling behaviour and low start-off pitch angle. Furthermore, the vehicle also has a reduced tendency to understeer in the higher lateral acceleration range: the driver is therefore able to control changes in direction with low steering input but high steering precision. When accelerating out of bends taken at speed, the tendency to understeer is reduced even further by "Extended Traction Control" (XTC): with this function, ESP®provides support in the form of directional stability by generating a yaw moment on the front and rear wheels located on the inside of the bend.

Steering: mechanical with electric assistance
The electromechanical steering of the A-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. The 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. A Direct-Steer system is available in combination with the Dynamic Handling package or AMG Sport equipment line. This provides a noticeably more direct steering ratio over the turning angle thanks to the variable ratio, and enhances the vehicle's handling and agility substantially. The steering conveys a high sense of safety, as the driver experiences a consistent and precise response to all steering movements.

The electric power steering also enables various steering assistance functions which are activated by the ESP® control unit
    Countersteering in case of oversteering
    Corrective steering when braking on road surfaces offering different levels of grip (split-fraction braking)
    Mitigating the extent to which the front-wheel drive influences the steering
    Compensating crosswind and road gradients
    The electric power steering also makes Active Park Assist possible.

With all engine variants, the Mercedes-Benz A-Class comes with disc brakes on all wheels. The callipers on the rear axle and the brake boosters are made of aluminium. A particularly convenient feature is the HOLD function, which is familiar from the larger model series: when stopping, for example at traffic lights, the driver merely has to press the brake pedal slightly more firmly and the brake will remain engaged until he moves off again. The brake is released automatically when the driver steps on the accelerator. On versions with manual transmission, the Hill Hold function automatically prevents the vehicle from rolling back unintentionally when starting on a slope.

The Mercedes-Benz A-Class is equipped with an electric parking brake, which operates by means of actuator motors acting on the callipers of the rear axle. The parking brake is activated via a button under the light switch on the left of the dashboard. This creates additional space in the centre console, as the handbrake lever is no longer required. When the button is pressed at speeds of over four km/h, the parking brake acts as an emergency brake, activating all four wheel brakes via the ESP®'s hydraulic unit.

In conjunction with the 7G-DCT automatic transmission, the parking brake offers a particularly convenient mode of functioning: when the driver accelerates sufficiently after fastening their seat belt, the parking brake is released automatically.

Aerodynamics: Saving fuel the aerodynamic way
With a drag coefficient (Cd) value of 0.27, the aerodynamic experts at Mercedes-Benz succeeded in creating another masterpiece with the Mercedes-Benz A-Class. And the A 180 BlueEFFICIENCY Edition due to follow later is even able to exceed this record for hatchback vehicles: thanks to a number of aerodynamic enhancements, this beacon of efficiency achieves a Cd value of 0.26.

Countless flow simulation studies on the computer and a great deal of fine tuning in the wind tunnel resulted in a clear goal: to enhance the basic shape of the A-Class design further, with a view to achieving an exceptional drag coefficient. This is no easy task, particularly for a hatchback model with a short rear overhang. But an improvement in the Cd value of just one hundredth will reduce fuel consumption by one tenth of a litre per 100 km when driving on the motorway at approx. 120 km/h. Based on NEDC figures, this corresponds to a CO2 reduction of one gram per kilometre.

With a Cd value of 0.27 and a frontal area of 2.20 m2, the drag area (CdA) is less than 0.6 m2 - a benchmark figure for hatchback vehicles in this segment.

The detailed work behind this development is highlighted by the following examples:
    The distinctive side spoilers next to the rear window ("finlets") help to create a run-on design which significantly reduces the disruptive longitudinal vortices generated at the D-pillars.
    Flow losses at the front wheel arches have been reduced substantially with the aid of patented serrated wheel spoilers at front and rear, slots in the wheel arches and optimised hub caps. These measures result in improved wind flow around the wheel arches.
    The Mercedes-Benz A-Class has an adjustable radiator shutter, already familiar in larger model series. The louvres behind the radiator grille are for the most part closed when there is no specific need for cooling air.
    The underbody has also been aerodynamically enhanced: the main floor panel features extensive cladding up to the rear wheel arch, followed by additional cladding of the rear axle. The rear silencer has also undergone aerodynamic optimisation.
    The new A-Class features exterior mirrors which have been optimised in terms of a number of details and already proven their excellent aerodynamic properties in large model series such as the S, E and C-Class, and also the B-Class. The position of the exterior mirror is adjusted in respect of the A-pillar in such a way that the airflow is directed along the side window without any significant interference or disruption.

The exterior mirrors and the low stepped height of the A-pillars reflect the fact that the work conducted in the wind tunnel was not just about optimising the flow conditions, but also about minimising wind noise. And in addition to aerodynamics and aeroacoustics, there is often another discipline to consider: in terms of water management too, the flow around the exterior mirrors and the A-pillars also has to be optimised in the wind tunnel in order to guarantee good visibility is maintained towards the rear and at the sides during wet weather.

More than with previous model series, in the case of the Mercedes-Benz A-Class the aerodynamics experts at Mercedes-Benz made particular use of flow simulation (CFD, Computational Fluid Dynamics): each component was first improved over several cycles using flow simulation before having its aerodynamic properties put to the test in the wind tunnel.

Digital flow simulation is based on so-called finite volumes as a mathematical model. A volume net is formed from around 60 million hexahedrons, or cubes, and is based around the CAD data of the new A-Class. This enables the driving cycle to be simulated over a free area in a large virtual wind tunnel. The Mercedes engineers generate the airflow using a predetermined turbulence level.

Setting new standards in terms of Cd value and consumption: BlueEFFICIENCY Edition

Due to follow later is the A 180 CDI BlueEFFICIENCY Edition boasting even better consumption levels. It is among the most efficient vehicles of its class: thanks to a series of additional aerodynamic optimisation measures, it has been possible to reduce its Cd value from 0.27 (standard model) to 0.26.

These measures:
    partially covering the upper part of the radiator grille
    aerodynamically shaped spring link coverings to improve the underbody airflow at the rear axle
    lowering of the suspension by 15 mm

Diesel engines: three efficient power bands
The new basic engine in the OM 607 series develops 80 kW (109 hp), delivers 260 Nm to the crankshaft and with a manual transmission consumes 3.8 litres per 100 km, corresponding to 98 g of CO2/km. This is a 22-percent improvement over the only 60 kW (82 hp) preceding model, the A 160 CDI, which consumed 4.9 litres. The new top diesel, the A 220 CDI, is no less than 25 percent better than its predecessor: it develops an output of 125 kW (170 hp) and 350 Nm of torque, and in combination with the 7G-DCT automatic dual clutch transmission it consumes only 4.3 litres/100 km (provisional figure). The figures for the preceding A 200 CDI were 103 kW(140 hp), 5.7 litres, and 149 g of CO2/km.

Mercedes SLS AMG Roadster, 2012

 

 

 

 

 

 

 

 

 

 

Mercedes SLS AMG Roadster, 2012

The technological highlights of the 2012 SLS AMG Roadster  an aluminum spaceframe body, an AMG 6.3-liter V8 front-mid engine with dry sump lubrication developing a peak output of 563 hp and 479 pound-feet of torque, a seven-speed dual clutch transaxle transmission and a sports suspension with aluminum double wishbones - all of which will raise the pulse of sports car enthusiasts while providing outstanding driving dynamics and driving pleasure.

The compact fabric soft top of the Mercedes-Benz SLS AMG Roadster opens and closes in just eleven seconds, and can be operated on the move at speeds up to 31 mph (50 km/h). The new Adaptive AMG Sport Suspension with electronically controlled damping is available as an attractive optional extra. It enables the damping characteristics to be modified at the touch of a button. Using the AMG DRIVE UNIT, the driver of the SLS AMG Roadster is therefore able to choose his own suspension setup. Three modes are available: "Comfort", "Sport" and "Sport plus".
"AMG Performance Media" is a unique new feature: the innovative, motorsport-inspired multimedia system offers an unrivalled combination of numerous telemetric displays such as lateral and linear acceleration, various engine data and lap times on a racetrack.

Pure roadster design with perfect proportions
The new Roadster adds a second exciting dream-car to the SLS AMG family. Head of Design at Mercedes-Benz, Gorden Wagener: "As in the gullwing model, the pure, athletic design immediately catches the eye. Whether with the roof open or closed, the Mercedes-Benz SLS AMG Roadster is an impressive visual delight!" The perfect proportions are particularly memorable: a long hood, the greenhouse positioned well to the rear and a short rear end. Plus the automatically extending rear wing, long wheelbase, wide track and short overhangs - in short, the convertible SLS AMG exudes effortless performance and an authentic charisma. The pronounced shoulder sections are reminiscent of tensed muscles, and suggest sheer power in combination with the large wheels - 265/35 ZR 19 (front) and 295/30 ZR 20 (rear). The attractive AMG Sepang brown metallic paint finish and weight-optimized forged wheels in a 10-spoke design, painted in matte black with a high-sheen rim flange, are available as new optional extras.

Features reminiscent of the 300 SL Roadster, the classic dream-car from the 1950s, include not only the wide radiator grille with its large Mercedes star and the wing-shaped cross-fin, but also the fins on the hood and on the vehicle sides. Like the Mercedes-Benz SLS AMG Roadster, the 300 SL Roadster appeared slightly later than the original gullwing 300 SL, but unlike the SL's both AMG dream cars are available at the same time.
Interior atmosphere like an aircraft cockpit

The interior continues the breathtaking design idiom of the exterior, and awakens associations with an aircraft cockpit: prominent features include the dashboard in the shape of a wing and the air vents with adjustable, cruciform nozzles reminiscent of jet engines. The extended center console of matte, solid metal and the new E-SELECT lever in the shape of an aircraft's thrust control are also design features adopted from the world of aviation. Another discreet, fine detail is the embossed AMG emblem on the leather-lined selector lever.

The AMG DRIVE UNIT - which like numerous other interior features is available in genuine carbon-fiber - is the central control unit in the center console: it allows the driver to choose a personal vehicle setup, including adjustment of the optional Adaptive AMG Sport Suspension. The AMG Performance steering wheel with its high-grade premium leather lining and flattened bottom rim section provides perfect vehicle control. The shift paddles and lower steering wheel bezel are made of solid metal.

Fully automatic, weight-optimized soft top
The sensual experience in the 2012MY SLS AMG Roadster is further enhanced when the soft top is open, and the powerful, naturally aspirated eight-cylinder engine with 563 hp and 479 pound-feet of torque asserts itself and makes the heart beat faster with its distinctive AMG eight-cylinder sound. The fabric soft top can be opened and closed while on the move at speeds up to 31 mph (50 km/h); the fully automatic opening/closing process takes only eleven seconds. The driver only needs to operate the roof control unit conveniently integrated at the front of the center armrest. When open, the soft top is space-savingly retracted behind the seats in a folded Z-configuration. Three soft top colors - black, red and beige - are available to suit the nine exterior and eight interior colors.

The three-layered fabric soft top is a weight-optimized magnesium/steel/aluminum construction, and contributes greatly to the car's low center of gravity. The soft top has a seamlessly bonded rear window of heated singlelayer safety glass. The flush, gap-free transition between the outer roof skin and the rear window keeps wind noise low. A continuous, flexible water pocket running under the soft top catches rainwater and directs it to the underbody via two apertures on each side. The trunk capacity is 6.1 cubic feet with the roof either open or closed, and therefore roughly equal to that of the SLS AMG Coupé (6.2 cubic feet).

Outstanding material quality and finish
The finest leather, matte-finished solid metal or optional, genuine carbon-fiber trim create an exclusive ambience and correspond with the authentic feel of the cockpit. Precisely executed decorative and contrasting stitching enhances the visual impression, heightens the hand-crafted look and reflects the attention to detail which is the hallmark of Mercedes design.
The standard appointments of the Mercedes-Benz SLS AMG Roadster include black designo leather, heated AMG sports seats, a detachable glass windstop, COMAND with Navigation and DVD player, anti-theft alarm system with tow-away protection and interior monitoring, dual-zone automatic climate control and the KEYLESSGO starting function. The standard AIRSCARF system exclusive to Mercedes-Benz acts like an invisible scarf warming the head and neck areas of the occupants. It is integrated into the backrests of the AMG sports seats, and blows warm air from vents in the head restraints. The airflow can be adapted for different occupant sizes by means of adjustable louvers, and the level of warmth can be selected in three stages at the touch of a button.

Leather-lined roll-over bars with integrated mesh in a "Silver Shadow" look are available in conjunction with designo Exclusive leather to reduce turbulence in the cockpit. Ambient lighting is integrated into the electrically folding exterior mirrors.
Single-tone or two-tone designo leather in espresso brown is available as a new interior color - this dark shade of brown perfectly matches the new metallic paint finish AMG Sepang brown.

AMG Performance Media and Bang & Olufsen as optional highlights
In addition to the Bang & Olufsen BeoSound AMG surround sound system, another optional entertainment highlight is the AMG Performance Media. In an unprecedented way, this racing-inspired system combines numerous telemetric displays such as engine data, lateral and linear acceleration and lap times on a racetrack. AMG Performance Media is activated by pressing the AMG key in the AMG DRIVE UNIT, and operated using the COMAND Controller. Key functions:

• Real-time display of engine oil, coolant and transmission fluid temperature
• Real-time display of engine output, torque and accelerator position
• Real-time display of individual tire pressures
• Real-time display of acceleration time from 0-60 mph or 0-100 km/h (alternatively: quarter-mile)
• Real-time display of lateral and linear acceleration combined with braking performance and accelerator position, including memory function
• Recording of individual lap times on a closed racetrack, with sector times and memory function
• Integration of DRIVE UNIT functions to save setup data to memory and initiate RACE START

The different functions of AMG Performance Media are shown by the color display integrated into the dashboard. Three displays are shown at any one time, with the most important information positioned in the center. Digitally simulated dial instruments with red needles ensure outstanding legibility.

Specifically reinforced aluminum spaceframe, low curb weight
In addition to maximum comfort, the key factor for driving pleasure in the new SLS AMG Roadster is the outstanding performance. The basis for this is the innovative body design: the chassis and body are made of aluminum, a design combining intelligent lightweight construction with high strength. With a curb weight of 3,661 pounds (estimated), the Roadster is only 88 pounds heavier than the Coupé. The result is a remarkable power-to-weight ratio of 6.5 pounds per hp.

To achieve the same level of driving dynamics - without a fixed roof, the Mercedes-Benz SLS AMG Roadster incorporates several features specifically designed to strengthen the bodyshell, including side skirts with greater wall thicknesses and additional chambers. The dashboard cross-member is supported against the windshield frame and center tunnel by additional struts, and a curved strut between the soft top and the tank reinforces the rear axle. The lack of a roof and gullwing doors means that the open-top SLS AMG has a reinforcing crossmember behind the seats to support the fixed roll-over protection system. This also accommodates the 250 watt subwoofer of the Bang & Olufsen BeoSound AMG high-end sound system.

All this prevents unwanted vibrations right from the start, and makes it unnecessary to use the additional, weight-increasing vibration dampers that are often found in open-top sports cars. The weight-optimized aluminum spaceframe weighs 536 pounds, tipping the scales at just 4.5 pounds more than the gullwing model.

Intelligent material mix and low center of gravity
50 percent of the intelligently designed, weight-optimized aluminum spaceframe is made of aluminum sections, 26 percent of sheet aluminum, 18 percent of cast aluminum and 6 percent of steel. Maximum occupant safety requires the use of ultra-high-strength, heat-formed steel in the A-pillars.

The entire vehicle has been designed to achieve the lowest possible center of gravity. This applies both to the low connection points of the powertrain and axles, as well as to the arrangement of the rigid bodyshell structure, which has been kept as low as possible. Examples include the rigid flexural and torsional connections between the front and rear section and the passenger safety cell, which have been designed to use force paths that are as low as possible.

Passive safety
The aluminum spaceframe provides the basis for outstanding passive safety. The extensive safety features include the fixed roll-over protection system, three-point seat belts with belt tensioners and belt force limiters, and eight airbags: adaptive front airbags and kneebags, two seat-integrated sidebags and two windowbags deploying from the door beltlines.
The standard Blind Spot Assist helps the driver with a visual warning symbol and acoustic alert if the danger of a collision with another vehicle is detected when changing lanes.
Powerful AMG 6.3-litre V8 engine with 563 hp
The Mercedes-Benz SLS AMG Roadster has the same, muscular engine as the gullwing model. The 6.3-litre V8 with a peak output of 563 hp at 6,800 rpm makes the open-top SLS one of the most powerful sports cars in its segment. Its power-to-weight ratio is 6.5 pounds per hp. This naturally aspirated engine generates its maximum torque of 479 pound-feet at 4,750 rpm. The convertible SLS AMG accelerates from zero to 60 mph in 3.7 seconds (0-100 km/h in 3.8 s), and the top speed is 197 mph / 317 km/h (electronically limited) - which means that the Roadster has almost identical performance to the gullwing.

The high-revving 6.3-liter V8 engine has the typical characteristics of powerful racing engines. It responds immediately and effortlessly to accelerator movements. The use of a dry sump lubrication system allows for a considerably lower installation in the vehicle, yielding a lower center of gravity for high lateral acceleration and thrilling driving dynamics.
Achievement of demanding fuel consumption targets

Despite its uncompromisingly athletic character, fuel consumption has also been addressed. The SLS AMG consumes 13.2 litres per 100 kilometres (NEDC combined), corresponding to CO2 emissions of 308 grams per kilometre. Efficiency enhancements include the familiar AMG-exclusive, friction-optimized twin-wire arc-sprayed coating on the cylinder walls as well as the on-demand, map-optimized oil supply and intelligent generator management: during the engine's overrun phases, kinetic energy is used to charge the battery rather than wasted by simply generating heat. Conversely, the generator is switched to no-load operation during acceleration, thus reducing the load on the engine. Sophisticated catalytic converter technology enables current and future emission standards such as Euro-5, LEV 2 and ULEV to be met.

Rev-matching transmission with transaxle configuration and torque tube
The AMG 6.3-litre V8 engine delivers its abundant power to the rear transaxle via an ultra-light carbon-fiber driveshaft - similar to the setup used in the DTM C-Class racing touring car. The rev-matching transmission is mounted at the rear (transaxle), and connected to the engine housing via a torque tube. A carbon-fiber shaft rotates at engine speed in the torque tube. The advantages of this sophisticated solution lie in the rigid link between the engine and transmission and, in turn, the optimum support for the forces and torque generated.

The AMG SPEEDSHIFT DCT 7-speed sports transmission boasts fast gear changes with no loss of tractive force - in as little as 100 milliseconds. The driver has a choice of four different driving modes: "C" (Controlled Efficiency), "S" (Sport), "S+" (Sport plus) or "M" (Manual). In the Sport, Sport plus and Manual modes the automatic rev-matching function is active; all the modes can be selected conveniently via the rotary control knob on the AMG DRIVE UNIT. The RACE START function provides optimum traction for full power launches from a dead stop -- as does the mechanical differential lock, which is integrated into the compact transmission housing.

Sophisticated suspension layout with double-wishbone axles
The front-mid-engine plus transaxle configuration provides an ideal front/rear weight distribution of 47 to 53 percent. Mounting the engine behind the front axle has created ideal driving dynamics with precise steering, first-class agility, low inertia for spontaneous directional changes and outstanding traction. All four wheels are located on double wishbones with a track rod, a technology that has proven itself in motor racing right through to Formula 1. With a double-wishbone axle, the wheel location and suspension functions remain separate; the spring/damper struts are supported on the lower wishbone. The double-wishbone setup with its high camber and track rigidity positively locates the wheel with minimal elastic movements, providing the driver with an optimum sense of road contact when driving at the limits.

Wishbones, steering knuckles and hub carriers at the front and rear are made entirely from forged aluminum - substantially reducing the unsprung masses; this configuration also notably improves the suspension response. The long wheelbase of 105.5 inches not only results in outstanding straight-line stability but also low wheel load shifts, significantly reducing the vehicle's tendency to dive and squat when braking and accelerating. The broad track width - front 66.2 inches, rear 65.1 inches - provides lower shifts in the wheel loads from the inner to the outer wheel when cornering, enabling the tires to retain more grip.

New Adaptive AMG Sport Suspension
The new Adaptive AMG Sport Suspension with electronically controlled damping is available as an attractive optional alternative to the standard AMG sports suspension. It enables the damping characteristics to be modified at the touch of a button. Using a button on the AMG DRIVE UNIT, the driver can choose his own suspension setup. Three modes are available: "Comfort", "Sport" and "Sport plus". The current mode is shown in the instrument cluster.

Direct steering, differential lock and 3-stage ESP

The rack-and-pinion steering gear provides a consistently direct steering feel with a constant mechanical ratio of 13.6:1, in tune with the high expectations placed on a super sports car. The power steering provides speed-sensitive assistance and improves feedback for the driver as speed increases, valuable during high-speed straight-line driving. Mounting the steering gear in front of the engine on the integral subframe enables the engine to be set down very low. The SLS AMG comes with 3-stage ESP® as standard, providing the driver with access to the three "ESP ON", "ESP SPORT" and "ESP OFF" modes at the touch of a button. In "ESP OFF" mode, operating the brake pedal restores all the normal ESP® functions.

The acceleration skid control (ASR) system's traction logic is active in all three ESP® modes. If one of the drive wheels starts to spin, specific brake pressure is applied to improve traction significantly - especially in conjunction with the standard-fit mechanical multi-disc limited-slip differential. This means that the engine power is transferred to the road more effectively during aggressive driving.

Optional AMG ceramic high-performance two-piece braking system
The AMG high-performance braking system with two-piece brake discs at the front provides extremely short stopping distances even under enormous loads. Red-painted brake calipers at all four corners are available as an option. The optional ceramic two-piece brakes with even larger discs provide even better braking performance. The ceramic brake discs perform at even higher operating temperatures thanks to their greater hardness, all combined with an impressive weight reduction of around 40 percent. Reducing the unsprung masses has further improved both comfort and grip, and the reduced rotating masses at the front axle provide a more direct steering response.

Lightweight construction was  key when it came to the wheels: AMG light-alloy wheels based on the innovative flow-forming principle reduce the unsprung masses while improving driving dynamics and suspension comfort. In addition to the standard AMG twin 5-spoke light-alloy wheels, there is a 7-spoke wheel that's available as a no cost option. Weight-optimized 10-spoke forged wheels are  as an option. 265/35 R 19 (front) and 295/30 R 20 (rear) tires developed exclusively for the SLS AMG provide optimum performance. A tire pressure monitoring system is fitted as standard to permanently monitor tire pressure in all four wheels, with an individual display for each tire.

Production in Sindelfingen, market launch in Fall 2011
The convertible super sports car will be produced at the largest Mercedes-Benz production plant in Sindelfingen. The AMG 6.3-litre V8 engine comes directly from the AMG engine workshop in Affalterbach, where it is hand-assembled according to the traditional "One man, one engine" philosophy.

German staff car

Mercedes' from Raiders of the Lost Ark up for Auction 1937

Miscellaneous, Mercedes-Benz
'1937 Mercedes' from Raiders of the Lost Ark up for Auction

How would you like to own a piece of Hollywood automobile history? The custom-built "1937 Mercedes" German staff car from Raiders of the Lost Ark will be one of over 500 items up for sale.

The black on black car, used in the chase scene during which Indiana Jones chases after the Ark of the Covenant while Nazis try to stop him, is made to look like a 1937 Mercedes 300, but is actually composed of Jaguar components. It was built on a Jaguar Mark IX chassis, equipped with a Jaguar Mark V body, and is powered by a Jaguar XKE 250 horsepower dual-overhead cam engine mated to a Jaguar four-speed manual transmission.

Craig Hinton of Leaping Cats Coventry, England, constructed the vehicle to be able to reach 120 miles per hour and handle the demands of a chase scene. Hinton moved to Florida after filming and exhibited the car in special events, including the Bal Harbour Councours D'Elegance on July 10, 1982. The car still has dents on the rear passenger side from filming, but is otherwise in great condition-all fluids have been changed, and the brakes have been bled.

Mercedes SLR Stirling Moss

Mercedes SLR Stirling Moss

With the SLR Stirling Moss Mercedes-Benz and McLaren are adding the crowning glory to the model family of their highly successful SLR super sports car with a new, uncompromisingly spectacular car. There is neither a roof nor a windscreen to separate the driver and passenger from the outside world; they enjoy unadulterated high-speed excitement with all the attributes of a speedster.

The new Mercedes-Benz SLR Stirling Moss is also characterised by the most sophisticated technology and a breathtaking design which reinterprets the SLR legend. With 478 kW/650 hp the SLR Stirling Moss accelerates its V8 supercharged engine from standstill to 100 km/h in less than 3.5 seconds, and has a top speed of 350 km/h - no other series-production car is at the same time so open and so fast. This extreme concept makes the new high-performance sports car a legitimate bearer of the name of the British motor racing legend and Mille Miglia record-holder Stirling Moss, who drove the legendary Mercedes-Benz SLR racing cars from victory to victory during the 1950s.

The exclusive Mercedes-Benz SLR Stirling Moss rounds off the current SLR family and is limited to 75 units. It is priced at 750,000 euros. The SLR Roadster will cease to be manufactured at the end of May 2009 as planned, and production of the Mercedes-Benz SLR Stirling Moss will commence in June 2009.

Three letters are all it takes to make car fans' hearts beat faster: SLR. In the 1950s the Mercedes-Benz 300 SLR celebrated victory after victory. It won the Mille Miglia and the Targa Florio as well as the Tourist Trophy. It was driven by the stars of the time: Juan Manual Fangio and Karl Kling - and, first and foremost, by the British racing driver Stirling Moss. At ten hours, seven minutes and 48 seconds he still holds the Mille Miglia record.


This is why the modern-day version of the legendary SLR carries the additional words "Stirling Moss" in its name. As the new Mercedes-Benz SLR Stirling Moss unites the character of the current SLR models with the fascination of the SLR of 1955. The core values of both the historical and the present-day SLR models include an exciting new design, innovative technology, high-class materials displaying perfect craftsmanship, and, above all: a unique driving experience for all the senses.

Highly puristic concept without a roof or a windscreen

Remaining totally true to the specifications of the 300 SLR, the new Silver Arrow's equipment is extremely sophisticated and yet at the same time decidedly spartan, doing without both a roof and side windows. There are just two wind deflectors a couple of centimetres in height to protect the driver and passenger from the airflow. Two air scoops integrated into the bodywork serve as roll-over bars. With this extreme concept the new Mercedes-Benz SLR Stirling Moss is visually very different from all the other vehicles which belong to the elite sports car class.

Just like the legendary racing vehicles of yesteryear, the SLR Stirling Moss dazzles with its superlative performance. Accelerating from zero to 100 km/h in less than 3.5 seconds and with a top speed of 350 km/h this puristic high-performance sports car denotes completely new dimensions in open-top driving. And not just because of the impressive performance figures; every time drivers take to the wheel of the Mercedes-Benz SLR Stirling Moss their senses are addressed with a previously unheard of intensity, conveying a driving experience in its purest and most sensual form. This automotive thoroughbred thus facilitates the kind of open-air feeling that is utterly unique for a road-going vehicle.

Exciting design reminiscent of the SLR racing cars

The Mercedes-Benz SLR Stirling Moss, its entire bodywork made of fine lightweight carbon fibre, represents a stand-alone design concept. Whilst the Mercedes-Benz designers were working on the body of the new SLR Stirling Moss, they were fully aware every single moment that they were creating a vehicle with a top speed of 350 km/h. At the same time this supreme athlete is highly reminiscent of the SLR racing cars from the 1950s, whose design idiom still never fails to impress to this day.

The Mercedes-Benz SLR Stirling Moss sports an exciting, pronounced arrow-shaped form and is characterised by an elongated bonnet and a compact, muscular rear. As there is no windscreen, the exterior and interior flow smoothly into one. The bonnet also stretches from its striking tip right down into the interior, giving the vehicle body a distinctly sleek air. Even when standing still, the sports car radiates such dynamism that the observer immediately falls under its spell.

The vehicle can be closed by two tonneau covers which are carried in the boot. When both tonneau covers and the doors are closed the Mercedes-Benz SLR Stirling Moss resembles a sculpture.

In keeping with the puristic exterior of the vehicle, the interior is also reduced to the bare essentials. Surfaces penetrating each other in the instrument panel and doors make for an exciting atmosphere and resonate perfectionism. A mixture of high-class authentic materials such as carbon fibre, aluminium and fine-quality leather sets the style here. An aluminium plate carries the engraved signature of Stirling Moss and covers the area around the shift lever.

Innovative technology and polished aerodynamic concept

Developers working on the Stirling Moss were able to fall back on a wealth of experience gathered when producing the SLR Coupé and Roadster, in particular where the technical base was concerned, with its extravagant carbon-fibre design, high-performance suspension and throaty V8 engine. The common denominator uniting the Stirling Moss with the other members of the SLR family is the aerodynamic concept with a closed underbody and a diffuser in the rear bumper for maximum possible downforce at the rear axle - with one difference: the diffuser here is considerably larger than that on the coupé and roadster.

Limited to 75 units - the SLR models' crowning glory

The new Mercedes-Benz SLR Stirling Moss is the kind of high-calibre speedster coveted by the sporting gentry and enthusiasts alike. At the same time it is a collector's item which marks the pinnacle of an era and, for the foreseeable future, at least, the final curtain for the SLR. In May 2009 production of the SLR models will cease; only a total of 75 units of the Stirling Moss will be manufactured between June and December 2009, bearing chassis numbers from 1 to 75. Not only does this exclusive vehicle represent the conclusion of the current SLR family; it also serves as a very special thank you to the most loyal of SLR customers, for they are the on