Buying a factory-turbocharged performance car is often done for one reason--"tuneability." Thousands of dollars can be spent increasing a normally aspirated engine's output by a nominal amount, but a ...

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 heart ...

We've shown you a dark metallic grey S4 Avant a few days ago, and here's another member of the family that Audi brought to the launch event in Bolzano, Italy. When it comes to the quattro brand, you ...

Considering the success Florida’s Champion Audi has had in motorsports—including a first and second at the last Sebring 12 Hour in the Team ADT Champion Racing R8s, and 2003 and ’04 manufacturers’ ...

HIGHS Stylish cabin, composed handling, strong performance. LOWS Grabby brakes around town, less character than rivals, slightly cramped interior. VERDICT With a performance-oriented powertrain ...

We’re always struggling to bring you the newest spyshots of upcoming cars around the world. Managing to release the first shots every time is rewarding but sometimes you meet with cars that are simply ...

HIGHS Stealthy performer, easy to drive fast, sharp interior design. LOWS Not the quickest versus the competition, monochromatic interior, somewhat small passenger area. VERDICT The S4 is a fun ride ...

At a private runway, the latest Audi RS4 takes on a stock B9 S4 in a series of drag and rolling races. Both cars feature ...

Based on the latest Audi A4, chassis code B9, the S4 is the hot, but not quite RS-hot model to take on the Jaguar XE-S, BMW 340i, and Mercedes-AMG C43. Like the previous generation, the S4 packs a ...