The first races using the TCR regulations took place in 2015, and since then the rules set has spread throughout the circuit racing world, being adopted by more than a dozen regional and national championships. In 2017 races with TCR cars span 23 different countries.
Of these the most high profile championship is the TCR International Series. The 2017 season includes some of the most famous circuits in the world, including Spa-Francorchamps in Belgium and the historic Monza circuit. The championship features privateer, customer teams with machinery representing a number of the top motor manufacturers.
As well as sprint racing TCR-specification machinery also features in multi-class endurance events, with specific classes in the international 24H Series and the Nürburgring 24 Hours.