800HP Audi S4 vs Chevy NOVA (Birka cup 4 - 2006)
Eklund Audi S4 @ birka 4 !!! THIS IS NOT A S6, IT'S A S4 100 (C4) !!! STOP STUPID COMMENTS !!!
400 bhp Skyline vs. sleeper Audi
On a trip to Norway a discrete junk-car blasts past at a ferocious speed.
Air Suspension - Can You Really Have it All?
In the past I've thought of air suspension as a modification reserved for trucks, low riders, and show cars. But what about sports cars? Is it possible to have the look you want at a show, the handling you want at the limit, and the practicality of clearing speed bumps and driveways? The guys from Accuair Suspensions say there is, so we put their Audi S4 to the test.
Mercedes SL55 AMG vs Audi S4 turbo
Video provided by Dyno-Comp www.Dynocomp.com Arizona's #1 performance shop hands down. Home of the worlds fastest C55 AMG and other record braking Mercedes-benz #1 RENNtech dealer in the USA