770HP Audi S1 Quattro Hillclimb by Prospeed AMAZING Sounds!

In this video you can see/hear the awesome Audi S1 Sport Quattro in action during 46° Verzegnis Sella Chianzutan. The car has been modified by Prospeed to compete at the highest level of Hillclimbs, and it should be able to produce around 770 horsepower! Follow me also on: - Facebook: - Google : NM2255 - Twitter: - 2nd Car Channel: