A powerful 252-horsepower engine combined with Audi's excellent quattro all-wheel-drive system, and the A4 gives BMW's 3-Series and Mercedes' C-Class a serious run for the money, while its sporty ...

The five-seat Audi A4 rolls into a new model year ... included in the optional Convenience Package. The S4 now comes standard with 19-inch wheels and summer tires; all-season tires are optional.

The A4 features an impressive 8-speed automatic transmission, and with the sure-footedness of Audi's world-class quattro all-wheel-drive system, a powerful engine, the availability of a wagon and the ...