Mercedes-AMG has teamed up with the brand’s F1 performance team to build a two-seater super-sports car for the Frankfurt Motor Show. Dubbed the Mercedes-AMG Project One show car, this monster features over 1,000 horsepower thanks to a high-performance hybrid powertrain similar to that of the F1 cars.
“The Mercedes-AMG Project ONE is the first Formula 1 car with MOT approval. Our highly efficient hybrid assembly stems from motor racing and the electrically powered front axle generates a fascinating mixture of performance and efficiency. With a system output of over 1,000 hp and a top speed beyond 217 mph (350 km/h) this hypercar handles exactly as it looks: it takes your breath away,” Ola Källenius says, Member of the Daimler AG Board of Management responsible for Group Research and Mercedes-Benz Cars Development.
Despite the Project One car technically being a concept, AMG says the show car is previewing an upcoming production car.
“The hypercar is the most ambitious project we have every undertaken. It marks yet another pinnacle of the successful, strategic development of Mercedes-AMG towards a performance and sports car brand. Project ONE raises the bar in terms of what is currently technologically feasible and thanks to its combination of efficiency and performance it represents an absolute benchmark. At the same time, Project ONE provides an outlook on how AMG will define driving performance in the future,” Tobias Moers explains as the Head of Management at Mercedes-AMG GmbH.
The high-performance plug-in hybrid drive system of the Mercedes-AMG Project ONE comes directly from Formula 1, and was realized in close cooperation with the motorsport experts of Mercedes-AMG High Performance Powertrains in Brixworth. It consists of a highly integrated and intelligently networked unit comprising one hybrid, turbocharged combustion engine with a total of four electric motors. One has been integrated into the turbocharger, another has been installed directly on the combustion engine with a link to the crankcase and the two remaining motors drive the front wheels.
The 1.6-liter V6 hybrid gasoline engine with direct injection and electrically assisted single turbocharging comes directly from the Mercedes-AMG Petronas Formula 1 racing car. The four overhead camshafts are driven by spur gears. To achieve high engine speeds, the mechanical valve springs have been replaced by pneumatic valve springs. The vehicle is mid-engined (ahead of the rear axle) and it can easily reach speeds of 11,000 rpm, which is currently unique for a roadgoing vehicle. For higher longevity and the use of commercially available “Super Plus” gasoline instead of racing fuel, max engine speed remains significantly below the F1 engine speed limit.
The electric motors on the front axle are also true rev wonders, with rotor revolutions up to 50,000 rpm – current state of the art is a speed of 20,000 rpm.
The very high-revving engine is additionally boosted by a high-tech turbocharger. The exhaust gas and compressor turbines are separated from one another and located at an optimum position to the exhaust side and to the intake side of the V6 engine, and connected to one another by a shaft. This shaft features an electric motor with approximately 90 kW which, depending on the operating status, electrically drives the compressor turbine with up to 100,000 rpm – for instance when moving off or following load changes. The Formula 1 designation for this unit is MGU-H (Motor Generator Unit Heat).
There are also two further 120 kW electric motors at the front axle. Each is connected to a front wheel via a reduction gear. The fully electrically driven front axle allows individual acceleration and braking of each front wheel, and therefore selective torque distribution (torque vectoring) for particularly high levels of vehicle dynamics. With the axle motors, we estimate that up to 80 percent of the braking energy can also be optimally used for recuperation under everyday driving conditions. This energy is stored in the battery and is available for a longer electric range. Each electric motor is controlled by its own power electronics located in close proximity to the electric motors in the floor assembly.
Power for the Project One ultimately flows through an automated eight-speed manual transmission specifically developed for the car. The transmission can be fully automated or shifted like a traditional manual transmission.
In addition to previewing an upcoming AMG product, the brand says the Project One is also an exercise in learning more about plug-in hybrid performance models and suspension components.