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
1948 Indianapolis 500 Collins, from WIBC, joined the crew for the first time, serving as a turn reporter at the south end of the track. 1948 Indianapolis 500 The 32nd International 500-Mile Sweepstakes was held at the Indianapolis Motor Speedway on Monday, May 31, 1948. For the second year in a row, the Blue Crown Spark Plug teammates Mauri Rose and Bill Holland finished 1st-2nd. Rose became the second driver to win the Indianapolis 500 in consecutive years. Unlike the previous year's race, no controversy surrounds the results. Coupled with his co-victory in 1941, Rose became the third three-time winner at Indy. Fourth