I’m so excited about this; the next Le Mans is going to be absolutely wicked! Audi today introduced the latest variation of last year’s Le Mans winning R18, the R18 e-Tron quattro, marking the first AWD race car entry by Audi in a looooooong time. This is a complicated drivetrain, with electric motors driving the front wheels, and the diesel motor driving the rear wheels—-with variation between them, so the front wheels serve as stabilizers depending on when the electric motor is on and what direction the car is turning in. Surely this has added weight as well, but it will be fascinating to watch the TDI R18s running simultaneously with the e-tron R18 quattros! As with most street and prior race-spec’d Audis….the grip gained by quattro will likely make up for any weight difference.