S6 Audi S6 C5 – 1999 – 2004 4.2 V8 340hp / 250Kw Read more Audi S6 C6 – 2004 – 2012 5.2 FSI V10 435hp / 320Kw Read more Audi S6 C7 – 2012 -> 4.0 TFSI 420hp / 309Kw Read more Audi S6 C7 – 2012 -> 4.0 TFSI 450hp / 331Kw Read more