Bobby Allison
NASCAR Hall of Famer Bobby Allison took two stabs at the Indianapolis 500. His first attempt came in 1973 aboard a McLaren-Offenhauser fielded by Roger Penske. He qualified 12th, but completed just one lap before a rod failed and forced him to retire in the 32nd position. He returned two years later with a similar McLaren-Offenhauser-Penske combination, but his luck didn’t improve. He finished 25th after his gearbox failed.