One make racing
One make, or single marque, championships often employ production based cars from a single manufacturer or even a single model from a manufacturer s range. There are numerous notable one make formulae from various countries and regions, some of which such as the Porsche Supercup and, previously, IROC have fostered many distinct national championships. Single marque series are often found at club level, to which the production based cars, limited modifications, and close parity in performance are very well suited. Some of the better known single make series are the Mini 7 Championship , the Radical European Masters, John Cooper Mini Challenge, Clio Cup, Ginettas, Caterhams, BMWs, and MX5s. There are also single chassis single seater formulae, such as Formula Renault and Formula BMW, usually as feeder series for senior race formula .