1987 Indianapolis 500 Al Unser, Sr. held off Roberto Guerrero by 4.496 seconds, to win his record-tying fourth Indianapolis 500 victory. By leading the final 18 laps, Unser, Sr. tied the all-time record for most laps led in Indy 500 competition, and, at 47 years of age, also became the oldest winner of the 500. Mario Andretti's dominance of the month, and subsequent failure to achieve victory, was largely unprecedented in modern times. He led the practice speed chart on 11 of the 17 days (he participated in only 13 days), won the pole position, won the pit stop contest, had the fastest
1991 Indianapolis 500 Unser and Sam Posey. The start of the race was delayed about one hour, and ABC filled the time with interviews, highlights, and other features. The same exact crew from 1990 returned. As a gesture to the 75th anniversary race, Jack Whitaker joined the pre-race coverage as an essayist. Rick Mears was the first Indy 500 winner to carry a RaceCam for television. 1991 Indianapolis 500 The 75th Indianapolis 500 was held at the Indianapolis Motor Speedway in Speedway, Indiana, on Sunday, May 26, 1991. Rick Mears won from the pole position, becoming the third four-time winner of the Indy