Groups

Members: 16
The IndyCar is the sanctioning body for American Indy Car racing and oversees a National and International schedule of open wheel events anchored by the Indianapolis 500.
Members: 14
The Grand American Road Racing Series sanctions to forms of road racing, the Rolex Grand-Am Series which combines the Daytona prototypes with Grand Touring production based cars and the KONI Challenge Series, a production-based circuit for both large and small sedans and coupes.
Members: 13
The Automobile Racing Club of America (ARCA) was founded in 1953 and features full-bodied stock cars competing on a variety of superspeedways, short tracks, dirt tracks and road courses around North America.
Members: 12
The National Hot Rod Association (NHRA) POWERade Series was founded in 1951 and is the premier drag racing sanctioning body in the world featuring national events from coast-to-coast including three main divisions; Top Fuel, Funny Car and Pro Stock.