The configuration enthusiasts chase is the 2008-2012 coupe with the naturally-aspirated 4.2L V8 and the 6-speed manual — a combination owners call magic and rate above the later supercharged cars and even, for sheer playfulness, the RS5. That preference concentrates demand and value on the V8 manual coupes.
The NA V8 + 6-speed manual is the grail
Audi S5 (B8) · value-and-market