A1-GP is an open-wheel auto racing series. It is unique in its field in that competitors represent their nation as opposed to a constructor, which is traditional in most formula racing series including Formula One.

The ARCA Lincoln Welders Truck Series runs on numerous short tracks throughout the Midwest, running mainly in Indiana and Ohio.

Air racing is a sport that involves small airplanes and is practiced around the world. It is somewhat similar to auto racing; however, corporate sponsorship and broadcast media coverage occur at a much lower level than in auto racing.

Autocross is a form of motorsports that emphasizes safe, low-cost competition and active participation. In the United Kingdom, autocrosses are typically held on a grass or stubble surface.

In fact the attraction is the challenge of driving quickly on challenging and difficult surfaces.

Autograss racing is Britain’s most popular form of amateur motor racing. It takes place at venues throughout England, Wales, Ireland, and Northern Ireland, and from 2006 at one venue in Scotland.

Autotesting involves a series of tests, generally around traffic cones, to measure precision driving skill. The tests often include stopping with the front and rear wheels straddling a line, and always end stopping in a garage (usually marked out with cones).

Sections of each test are usually completed in reverse. Cars involved can be standard road cars or ones specially built for autotest.

Banger racing or enduro racing is a dirt track racing type of motorsport event popularized in Europe and especially Great Britain, but also on short tracks of the United States.

On banger racinfg  the drivers of old vehicles race against one another around a race track and the race is won in terms of the first car to the chequered flag, all the while (in Europe primarily) attempting to deliberately wreck the opposing vehicles. The race tracks are usually oval but on occasion are constructed in a figure eight design.

Board track racing was a type of racing where the track had a surface of wood boards. The genre was popular in the United States in the early 20th century.

Champ Car, an abbreviation of “Championship Car”, has been the name for a class and specification of cars used in American Championship Car Racing for many decades. It is also commonly used to refer to the Champ Car World Series, an international open-wheel championship based largely in North America and formerly known as Championship Auto Racing Teams, or CART.

The NASCAR Craftsman Truck Series is a racing series owned and operated by the National Association for Stock Car Auto Racing.
It is the only series in all of NASCAR to race modified production pickup trucks and is one of the three national divisions of NASCAR, together with the Nationwide Series and the top level Sprint Cup.