Four-cylinder engines aren't what they used to be—they're way, way better. And considering the goodness of the A4 2.0T's 252-hp turbo-four, the new turbo-six-powered 2018 S4 must work harder than ever ...

Seemingly out of nowhere, Audi switched its focus back to diesel engines with several models powered by the same new 3.0 TDI. The 2020 S4 Avant is probably our favorite out of them all, and it almost ...

Alex Kaufmann July 22, 2009 Comment Now! You'd think that spending the time, effort and money to get another 92hp out of your car would yield more than 0.1 seconds in the 0-62mph dash and the same top ...