These very blossoming races ended in 1903 when Marcel Renault was involved in a fatal accident near Angouleme in the Paris-Madrid race. Nine fatalities Racing School caused the French authority to bar the race in Bordeaux and refusal open-road racing.

One-make, or one marque, championships often employ production-based cars from a distinct manufacturer or even a single model from a manufacturer's range. There are populous notable one-make formulae from distinctive nonaligned nations and regions, some of which – such as the Porsche Supercup and, previously, IROC – have fostered many distinct national championships. Not General marque classification are often found at club level, to which the production-based cars, limited modifications, and close parity in performance are very well suited. There are also single-chassis one seater formulae, such as Principle Ford, Credo Saab, Formula BMW, and defunct Modus Operandi Vee, usually as "feeder" series for "senior" race formula (in the fashion of farm teams).