In December, 2005 the FIA gave concurrence to Superleague Creed racing, set to debut in 2008. This will be open-wheel, single-seat stock compact racing around August Prix racetracks. The teams will be owned and scamper by prominent sports clubs such as AC Milan and FC Porto. The race weekend will follow the GP2 format of Saturday qualifying and two Sunday races, one featuring a reverse grid.

NASCAR also governs the Whelen Modified Tour. Modified cars are best described as hybrids of stock cars and open-wheel cars. They are heavily altered from stock, with powerful engines, extravagant tires, tubular Racing School chassis and light bodies. The Whelen Modified tour is NASCAR's oldest series.