All races in the FIA GT Championship were of endurance type, a full race distance lasting a minimum of 500 km or a maximum of three hours, with the exception of the Spa 24 Hours, Istanbul 2 hours and the exhibition Mil Milhas Brasileiras, which is run over a thousand miles (1609 km) and was planned to be a round of the championship in 2007. However, with the release of the 2007 FIA GT Championship schedule and rules, the FIA GT series becomes more of a sprint race event, with all races being a maximum of 2 hours with the exception of the Spa 24 Hours.