2002 Audi RS 6 (4B,C5)

Close-up view of a V8 engine featuring a carbon fiber engine cover adorned with the Audi rings logo and the 'BITURBO' marking in red.

V8 engine with carbon fiber cover and Audi rings logoThe Car Spy, CC BY 2.0 <https://creativecommons.org/licenses/by/2.0>, via Wikimedia Commons