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.

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.

Diesel's low-rev response, some fussy facelift styling details Understated almost to the point of anonymity, the S4 is the mid-level performance version of the Audi A4 saloon that’s seen more ...

This car still out-performs a lot of todays cars. The Audi S4 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide ...

Engine has not been tampered with. Interior still smells like new leather. The Audi S4 price depends on several factors, including the trim level, optional features, mileage, vehicle history and ...

In-dash technology, connectivity and infotainment is also a strength of the A4 and S4 family. While Audi Connect made its debut in Audi's larger models, the A4 gets the most advanced new form of the ...