The Audi RS5 is now part of the Audi Sport family, comprised of only RS models and the R8. This new RS5 says goodbye to a high-revving V8 engine and hello to a small 2.9L bi-turbo with 450hp and 442lb.-ft. of torque. This RS5 is built on the same lighter platform as the Audi A5 and A5, shedding 60kg, plus the buyer can choose a carbon fiber roof to keep the weight down even more. The power goes to al four wheels through an 8-speed automatic, no duel clutch for a smoother drive at city speeds.