Audi Makes it Official: RS5 Coupe Powered by 450-hp Twin-Turbo V6
Audi Makes it Official: RS5 Coupe Powered by 450-hp Twin-Turbo V6 [See image gallery at www.quattroworld.com] Audi has pulled the wraps off their new RS5 Coupe based on the latest A5/S5 platform, replacing the beloved naturally aspirated V8 with a 2.9L…