The series will feature Porsche 911 GT3 Cup racecars, is a support event for the American Le Mans Series. It was previously known as the IMSA Challenge.
Yokohama will provide Advan race tires as the spec tire and serve as the presenting sponsor for the 2009 and 2010 race seasons. The 2009 campaign will feature 12 races during six event weekends at such tracks as Sebring International Raceway, Road Atlanta and Mazda Raceway Laguna Seca. (Tire Review/Akron)