Racing driver Walter Rohrl, Group B monster Audi Sport quattro S1, and the treacherous Pikes Peak Hill Climb are iconic in and of themselves, but when combined, it marks a legendary moment in the ...

These days, most enthusiasts know Audi for its legendary R8 supercar, but the German brand wouldn't be where it is today without the Quattro ... the Pikes Peak Hill Climb for three consecutive ...