After retiring from Indycar driving in 1982, Unser did developmental work for Audi, lapping one at 206.8 MPH. In 1986, after a 12-year absence from the Pikes Peak race, he won the event for the tenth time driving an Audi Quattro, breaking the tie he had with Uncle Louis for nine overall victories each. The 1986 win brought Unser’s total number of Pikes Peak victories to 13, including two stock car class victories (1969 and 1974) and a single sports car class win (1963).