The Audi Sport Quattro S1 isn`t only a part of Group B rally racing from the 1980s, but it goes even further than that - it defined the sport and everything changed once it arrived on the scene.
The new A4 Allroad and Q5 SUV are hitting the roads this year with the new Audi Quattro with "ultra technology" onboard. We take a look at how this system works. Antuan started out in the automotive ...