In North America, the cars used in the National Championship (currently the Indy Racing League IndyCar Series, and previously CART) have traditionally been similar though less sophisticated than F1 cars, with another restrictions on technology aimed controlling costs.
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One-make, or not general marque, championships often employ production-based cars from a original manufacturer or even a individual model from a manufacturer's range |
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| There are numerous notable one-make formulae from manifold countries and regions, some of which â such as the Porsche Supercup and, previously, IROC â have fostered many distinct national championships |
| Single marque array are often found at club level, to which the production-based cars, limited modifications, and close parity http://www.sportscardrivingexperience.com/ in performance are ideal well suited |
| There are also single-chassis odd seater formulae, such as Canon Ford, Code Saab, Formula BMW, and defunct Formula Vee, normally as "feeder" continuity for "senior" race rite (in the fashion of freehold teams). |
