The Audi RS5 was best known for its strong V8 engine matched with a sporty 6 speed standard transmission and the iconic Quattro all-wheel drive system. In the latest models, you can find the RS5 equipped with the new 2.9L twin-turbo V6 and an 8 speed automatic transmission. Never the less, Audi has continued to power this incredible coupe with its industry leading Quattro system. This is one car you are not going to want to sleep on.