Manuel Ayulo raced at Indy four times finishing 3rd in 1951 driving relief for his friend Jack McGrath. He drove with Jackin the Carrera Panamericana finishing third in class in 1953. He was killed in practice for the 1955 Indy 500.
52 years ago.
, aged 34
Bettenhausen drove in 11 Indianapolis 500-Mile Races and was owner of the Bettenhausen Motorsports racing team. He was killed in a plane crash along with his wife, Russ Roberts and Larry Rangel.
7 years ago.
, aged 49
Bobby Allison's youngest son, Clifford was killed in a crash during a practice session at Michigan International Raceway.
15 years ago.
, aged 28
Gunnar Nilsson was a fine driver who was rising to prominence until cancer killed him. He is remembered thanks to the charity that bears his name.