The 2011 Audi A4 is Audi's best-selling model, and for good reason. Though it appears small and muscular on the outside, the A4 offers plenty of interior space and good fuel economy to boot.

Sport and luxury are showcased in the A4, Audi's best-selling sedan ... A finalist in MotorTrend's 2017 Car of the Year competition, the A4's spacious interior, dazzling tech, and nimble handling ...