The 2008 Detroit Indy Grand Prix presented by Firestone was an IndyCar Series race that was held on August 31, 2008 on the Raceway on Belle Isle in Detroit, Michigan. It was the sixteenth race of the 2008 IndyCar Series season. Originally scheduled to run over 90 laps, it was shortened to 87 laps due to 2-hour limit. The race was won by Justin Wilson for the Newman/Haas/Lanigan Racing team. Hélio Castroneves finished second, and Tony Kanaan clinched third. Wilson dedicated his win to actor Paul Newman, the ailing joint-owner of his team; Newman died less than a month later.