Audi RS4/RS5 specs leaked

A leaked dealer presentation has revealed the next Audi RS4 and RS5 will use a twin-turbocharged 2.9-liter V6 borrowed from Porsche. The mill will make 450 horsepower, allowing the new RS4 Avant, RS5 coupe, and RS5 Sportback to hit 60 mph from a stop in less than four seconds.