One of the most asked-about questions regarding Audi’s upcoming RS 6 (C9) is just what will power the car. More recently launched versions of key competitors have all gone hybrid – the 577 hp Mercedes-AMG E53 HYBRID with an inline 6-cylinder turbo and the BMW M5 with its 717 hp V8 twin turbo hybrid.  So, how will Audi power the C9 RS 6? In theory, Audi has several options. It could follow Mercedes-AMG’s lead and paired its 2.9-liter biturbo from the … Continue reading Next Audi RS 6 Engine Confirmed