Official Race Program 1991 Detroit Grand Prix , Cart/PPG Indy Car Series

The 1991 race was the last CART series event to take place in Detroit, replacing the race in 1989. The race was held on June 2–4, 2023, and attracted an estimated 150,000 people. The race included support races like the Neon Challenge celebrity race and the Motor City 100 for the SCCA Trans-Am Series