The Audi A4 and S4 are refined, competent sports sedans that offer good value compared to their competitors, but both are due for an update any day now. What do you need to know before you buy an A4?

2004 Audi S4. Trading ... Suitably chunky 235/40R-18 tires mount to the signature Avus 6-spoke wheels, ... and are markedly more satisfying than the A4's. Where the S4 differs from its Munich ...

The 2013 Audi A4 and S4 receive the same styling changes for 2013 as their A5/S5 platform-mates. Read on to learn more on the 2013 Audi A4/S4 in this first drive article brought to you by the ...

2007 Audi A4 and S4 Cabriolet. ... The S4 gets several sporty touches including restyled 18-inch wheels, huge air intake ducts, and plenty of badges advertising its 4.2-liter V-8.

The base A4 comes with Audi’s peppy 200-hp turbo engine and costs $39,100 with front-wheel drive and $41,200 for the all-wheel-drive Quattro model. A 3.2-liter V-6 version produces 255 hp, comes ...

The 2012 Audi S4 exists to satisfy power-hungry customers who find the pedestrian A4 - and its 2.0-liter turbo four - inadequate. Instead, the S4 is packed with a supercharged 3.0-liter V-6-engine ...

Since Audi hasn’t offered the sporty S4 in Wagon form for the U.S. since the B7 generation, one owner decided to do something about that using a brand new 2018 A4 Allroad model. One full ...

Peter Macejka, Audi VW Specialist Centre: “The B6/B7 V8 is a good engine and sounds great, but it could do with more power. The 414bhp BS7 RS4, which uses a highly modified version of the S4’s ...