In the previous installment (et 11/09) we took the squish out of our project S4, overhauling its chassis with some premium gear. This time we plan to make the go-pedal work better. In the case of ...

The stock Audi S4 Avant, from the B5 generation, used to be pretty fast back in the day, but this tuned example is much more powerful. How much? Well, it is powered by a 3.0-liter RS4 engine with a ...

We'd like to thank everybody who applied to contest the upcoming Castrol Syntec Top Car Challenge on our behalf. It was a tough decision to make, but we found a car with the power, spec and experience ...

Many PHers complain about the difference between review verdicts and their real-world experience of the car in question. The same disconnect can happen to professional reviewers. I know this because ...

The Vortec 6000 doesn't really get the attention it actually deserves. The only engine of the Gen 3 small-block family to feature a cast-iron block is particularly good for high-output applications, ...

Even though you can buy a perfectly new high-performance hatch or saloon, people continue to invest crazy money in older cars such as the Audi S4 B5. Aside from a few discreet exterior tweaks, a ...

The Audi S4 and S5 have always been somewhat like cult cars for Audi buyers who know what they want and are happy to see these new models finally enter showrooms. There’s not a lot of cross-shopping ...

For Audi enthusiasts, there’s no car more iconic than the S4. First seen in 1992 as the UR-S4 and later as the iconic B-segment car in 1999, the B5 Audi S4 launched with a twin-turbo V6 as a response ...