 Aside from the emissions benefits of a hybrid system, the immediately available torque which is produced from electric motor(s) can lead to performance benefits by addressing the power curve weaknesses of a traditional combustion engine.Hybrid racecars have been very successful, as is shown by the Audi R18 and Porsche 919, which have won the 24 hours of Le Mans using hybrid technology.In 2014, Formula 1 has changed the cars from 2.4 L V8 engine to 1.6 L turbocharged V6 engine, limited to 15,000 rpm.