The nimble Audi S4 carries over into 2023 largely unchanged, save for a few cosmetic options including now-standard 19-inch wheels and two new paint finishes. S is for sporty; the S4 is the performance version of Audi's A4 sedan. Its 349-horsepower V6 engine makes it one of the quickest sedans in its class, blazing a zippy trail between 0 and 60 mph in 4.3 seconds in Edmunds' testing. Inside, the S4's cabin is the automotive equivalent of Zurich: efficient, clean, and replete with modern comfort and amenities. Stainless steel caps adorn the pedals, the no-nonsense tri-spoke steering wheel is suitably stylish, and the illuminated doorsills evoke an executive's expensive office chair. The S4's smooth ride and comfortable front seats build out the appeal of this dual-purpose sedan.