Formula One is the highest class of single-seat auto racing sanctioned by the FIA. F1 races take place on purpose-built tracks and public roads around the world. F1 cars must conform to a set of rules and can reach speeds up to 380 km/h. Each season consists of a series of Grand Prix races. The results determine a drivers' and constructors' world championship. India has hosted the Indian Grand Prix at the Buddh International Circuit since 2011.