Until the highly anticipated RS5 comes into play, the S5 is the reigning king of the lineup, making it the perfect base for ...

The 2011 Audi A4 is Audi's best-selling model ... along with side impact thorax bags and front and rear head curtain bags. A4 Sedan FWD: 22 mpg city/30 mpg highwayA4 Sedan AWD Manual: 21 mpg ...

Interior space in the A4 is competitive for the segment. Compared to the BMW 3 Series and Genesis G70, it's the Audi that has the most rear legroom. That said, its trunk is just mid-pack.