1986 Audi #2 Audi Sport quattro S1

This was the car that put Audi rallying on the map. Introduced in late 1985 as a Group B entrant, the quattro S1 began a string of incredible performance that helped define the near mythical status that Group B regulations still enjoys among rally enthusiasts. The quattro S1 was one of the most powerful Group B cars ever made, with its turbocharged engines producing power north of 460 horsepower. Little wonder that, in addition its rally popularity, the quattro S1 also held multiple world records on the Pikes Peak International Hill Climb during the late 80s, and is still widely regarded to this day as one of the most incredible race cars Audi has ever built.