Used car buying guide: Audi S4 (B6/B7) You’ll simply adore the naturally aspirated V8 of a 2003-09 Audi S4 – so long as a few crucial plastic parts don’t break Can’t tell your B6 S4 from your B7? The ...

When a manufacturer has established a reputation for sporting excellence based on good-sized normally aspirated V8s, you know there's going to be massed groans when they announce the end of the line.

Are you looking to get into the classic car game, but want something that still offers modern appeal? Enter the B7-generation Audi RS4 – and, for an extra touch of exclusivity, the Avant derivative.