2021 Audi S4 specifications Verdict. 1. Only Audi can do – with this much success – what it does with the S4. While I love the RS cars, they can sometimes miss the mark, like the slightly doughy new ...

The WD Detailing crew turns around an Audi S4 disaster, revealing a stunning transformation inside and out. Diamondbacks' ...

Part 3 of our REVO Stage 2 Audi S4 series. After exploring the build and driving hard, it’s time for the truth: Is this S4 ...

Shop 2023 Audi S4 vehicles for sale at Cars.com. Research, compare, and save listings, or contact sellers directly from 48 2023 S4 models nationwide.