Detroit



A bumpy 2.500 mile street track, shortened to 2.493 miles in 1983 with the removal of turn 5. The track was used from 1982 until 1991, with Indycars using the track from 1989 unil they moved to Belle Isle for 1992.

As both F1 and Indycar raced on the same track, this showed clearly which was the faster formula. The fastest F1 race was the 1987 race, won by Ayrton Senna in a Lotus 99T-Honda at an average speed of 85.697 mph. The fastest Indycar race was the 1990 race won by Michael Andretti in a Lola T90/00-Chevrolet at an average speed of 84.902 mph (this also includes a rolling start). The lap record is held by Ayrton Senna (Lotus 99T-Honda), 1m40.464, 89.584mph, set in 1987.