Detroit Grand Prix (IndyCar)
The Detroit Grand Prix (branded as the Chevrolet Detroit Grand Prix presented by Lear Corporation for sponsorship reasons) is an IndyCar Series race weekend held on a temporary circuit in Detroit, Michigan. The race has been held from 1989 to 2001, 2007 to 2008, 2012 to 2019, and since 2021.
Source: Wikipedia — Detroit Grand Prix (IndyCar) (CC BY-SA 4.0)