The Audi S4 is the automaker's original compact sports sedan, priced above the Audi S3 sedan and below the Audi S6, S7, and S8 sedans in the automaker's S series of sporty four-door models.

Prices shown for the used 2008 Audi S4 Sedan 4D S4 Quattro with NaN miles are what people paid to buy this vehicle or what people received when trading in this vehicle at a dealer. Edit options.

Mileage changes a vehicle’s value. The default value is used if mileage is not entered. Price with Standard Equipment Standard equipment includes the features that come with this vehicle. Select Your ...