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 ...

Front legroom is 41.3 inches in the A4, a bit less than the 3 Series' 42.0 inches. The Audi's second-row headroom of 37.4 inches is close to the BMW's 37.6. There's a bit more rear legroom in the ...