Audi Details V6 TDI with Electric Charger in RS5 Concept
19 Jun 2014, 13:11 UTC · By: Mihnea Radu / The RS5 TDI Concept was built by Audi to celebrate the 25th anniversary of the TDI engine. However, it's so much more than a diesel engine in the body of a sports coupe. A brand new type of ...