The core value argument is that the S6 shares most of its hardware with the RS7 — the same 4.0 TT V8 family (related to the Lamborghini Urus engine) — in a more understated body and without the RS7 price premium. Owners see it as an under-appreciated way into big twin-turbo V8 performance.
A discount RS7 — same twin-turbo V8, less money
Audi S6 (C7) · value-and-market