The new Audi RS5 is the legitimate successor of the second-generation RS4 with high-revving 4.2-liter V8 making 450 hp (30 hp stronger than RS4) . The seven-speed S-tronic and an innovative center differential in the quattro drivetrain transmit power to all four wheels. And for the first time in an all-wheel-drive car, Audi has added a software-based, wheel-selective pseudo-torque-vectoring system. This new differential operates in conjunction with electronic torque read more..»