Audi R18 e-tron quattro is the name of the new Le ... effort is kept limited for Audi Sport and the race team. "The TDI engine invented by Audi is still the most efficient drive in the world ...

Unlike last year's car, though, this R18 has a secondary hybrid system. Audi has fitted the V6 with an electric turbocharger and figured out how to capture waste heat generated when the engine ...