Audi is facing yet another legal battle over alleged cooling-system problems, and this one could affect a massive number of ...

Ride onboard a 750HP Audi Quattro track car during its first shakedown after an engine rebuild. Powered by a legendary 5-cylinder turbo engine, this car delivers brutal acceleration, raw sound, and ...

Your old, reliable engine has been coughing up some strange, but concerning noises. So, you call your mechanic to find out what the problem and solution are to restoring its harmonious hum. But the ...