ロード・アメリカ
The Grand Prix of Road America, also known as the REV Group Grand Prix at Road America for sponsorship reasons, is an IndyCar Series race held at Road America in Elkhart Lake, Wisconsin. For twenty-five years, the event was part of the CART series, with the first race being held in 1982. The event was put on hiatus in 2008 after the unification of Champ Car into the Indy Racing League.