Affalterbach. To coincide with the 2015 Geneva Motor Show,
Motor sport and
"We are entering a hotly contested and strongly occupied competitive environment with the new
The spectacular design and cutting-edge technology of the
Sheer emotion and sheer power
The design lines of the new
The widened body, the large air inlets, the diffuser and the enormous rear aerofoil – numerous features from motorsport give the
Front end with new "Panamericana" radiator grille and "shark nose"
The new "Panamericana" radiator grille is particularly noticeable when viewed from the front. Its design with vertical chrome struts is reminiscent of the Mercedes-Benz 300 SL racing sports car. In 1952 this won the famous "Carrera Panamericana" endurance race across Mexico. With this modern reinterpretation of a classic design,
The three-dimensionally formed Panamericana radiator grille is more convex at the top than at the bottom – designers refer to these proportions as a "shark nose". It is particularly recognizable from the side, and gives the
AMG Lightweight Performance: carbon-fiber and aluminum spaceframe
To keep the vehicle weight as low as possible, the body is mainly of carbon-fiber: the bonnet, doors, front wings, front and rear aprons, side walls, side skirts, diffuser, boot lid and rear aerofoil are made from this particularly lightweight yet extremely strong material. As in the roadgoing version, the vehicle structure of the GT3 consists of a likewise extremely lightweight yet rigid aluminum spaceframe. With numerous detailed improvements, systematic implementation of the "AMG Lightweight Performance" strategy has resulted in an even lower kerb weight than that of the
Flics mounted on the sides of the front apron generate downforce at the front axle, as do the so-called "louvres", the wheel arch air vents at the top of the front wings. On each side, the wider body compared with the standard version of the
Maximum downforce and aerodynamic performance
A large, central aperture in the bonnet has the appearance of a gaping mouth. Its purpose is to expel large volumes of air warmed by the cooling module. Behind the front wheels there are noticeable wheel arch air vents which likewise conduct away warm air. Air inlets ahead of the rear wheels assist cooling of the rear brakes. Directly in front of each one is an exhaust tailpipe – it is from these scarcely muffled "sidepipes" that the typical AMG eight- cylinder sound thunders. Music to the ears not only of hard rock enthusiasts. Below the side skirts, the smooth underbody ensures an efficient airflow beneath the vehicle.
Extremely wide and sporting its large rear aerofoil, the
Naturally aspirated, high-revving AMG engine as a well-proven power unit
The AMG 6.3-liter V8 engine, with additional improvements for the new racing car, ensures the fulminating power already familiar from the
As is usual for the standard production engines, the racing engine also has an AMG engine badge bearing the signature of the technician who assembled it: Production of the V8 engine is a manual operation following the traditional "One Man - One Engine" principle applied in the AMG engine shop in Affalterbach. Naturally these AMG engine specialists are particularly proud to be assembling engines that are used to compete on legendary race circuits.
The sequential six-speed racing transmission of the
Double wishbone suspension of aluminum
Like the roadgoing version, the GT3 has a double wishbone suspension made almost completely of aluminum. This solution once again demonstrates how closely regular production and racing technology are linked at AMG. The same applies to the vehicle concept, with a low center of gravity, perfect weight distribution, long wheelbase and wide track. This layout guarantees precise self-steering characteristics, high lateral acceleration, first-class agility, high traction and low inertia during fast changes in direction. On the different race circuits, all of these attributes give the driver the advantages necessary to achieve top placements.
For their individual, circuit-specific setup, customer teams are able to precisely set the springs and dampers, stabilizers, suspension height, track and camber. The servo-assisted, direct ratio rack-and-pinion steering likewise contributes to agile handling. The development team paid particular attention to the vehicle's predictable handling and good controllability at the critical limits. In these respects the
Neither did the AMG engineers accept any compromises when it came to the brakes: Good deceleration is ensured by a fade-resistant and very effective steel racing braking system with composite technology and adjustable racing ABS. Rapidly replaceable brake linings reduce idle time during endurance races. The pneumatic jacking system with four plungers integrated into the underbody allows fast pit stops and tire-changes.
Major focus on functionality and safety
Functionality and safety are dominant features in the cockpit of the new
The cockpit layout is basically the same as that of the roadgoing sports car: the low, sloping dashboard resembles a powerful wing, and emphasizes the width of the car. Numerous controls are arranged in the prominent center console, whose shape is reminiscent of an NACA air intake, e.g. the main switch, the switch activating the ignition and the starter button for the V8 engine. A manual brake balance adjustment is located next to the rotary switch for traction control and ABS. Reverse gear and the fire extinguishing system can also be activated on the center console.
Adjustable racing steering wheel and pedal cluster
The quick-release racing steering wheel eases access and egress. Like that of the pedal cluster, its position is adjustable within a wide range for rapid adaptation to different sizes of driver. As only the steering wheel and pedals are adjusted, but not the seat shell, the car's center of gravity and therefore the wheel load distribution always remain the same. This safeguards the setup during endurance races, where up to four different drivers often take the wheel. It also ensures that each driver is seated in the safest position within the confines of the rollover cage. Ergonomically arranged shift paddles allow gear changes without the driver's hands leaving the wheel – a further safety aspect. The driver is able to activate the two-way radio, headlamp flasher or drink function using keys on the steering wheel.
The central display is optimally positioned in the driver's field of vision. The so-called DDU (Digital Display Unit) provides all relevant information such as road speed, engine speed, operating temperatures, lap times, current gear and upshift indicator. A function key on the steering wheel is also used to switch between the information shown by the color display.
Seat shell of carbon-fiber, rollover cage of high-strength steel
The safety concept of the
Thanks to its special shape, the safety cell bolted to the rollover cage and aluminum spaceframe provides a high level of protection for the driver's shoulders, pelvis and legs, and it is also compatible with the HANS system (Head and Neck Support). The HANS system helps to prevent serious head, neck and spinal injuries, and is mandatory in many race series. The seat shell is individually foam-padded for every driver, features a six-point seat belt with reinforced anchorage points and provides an outstanding level of occupant protection.
Additional protection is ensured by the rollover cage of high-strength steel, which is bolted to the aluminum spaceframe and helps to rigidify this even further. It too was optimized for easier access and egress by the driver. An escape hatch is integrated into the roof, so that the driver can be rapidly rescued in an emergency if e.g. no access is possible via the doors. For reasons of balance, the carbon-fiber safety fuel tank is located directly behind the passenger cell and features an inner sac of elastic rubber.
Production at the Affalterbach plant
Production is in close cooperation between
Deliveries to commence at the end of 2015
2015 will be devoted to the development and intensive testing of the
187 wins since 2010, victory in eight endurance races in 2013
AMG and HWA will continue to provide their highly professional services in Affalterbach, and also replacement parts support at the racetracks, for customer teams still using the