Gallery: Audi’s New R18 E-Tron Quattro Race Car Brings Hybrid Technolog...


Audi just unveiled its new R18 E-Tron Quattro race car, which is the world’s first world’s Le Mans (LMP1) car to combine an efficient TDI diesel engine with a hybrid system. The R18 E-Tron Quattro is powered by a 510-hp 3.7L V6 TDI diesel engine that sends its power to the rear wheels, but the race car also uses kinetic energy to power the front wheels. During braking, kinetic energy is captured on the front axle, that is then fed into a flywheel accumulator, before being retrieved under acceleration again at speeds above 75 mph.

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