Touring car racing is a general term for a number of distinct auto racing competitions in heavily-modified street cars. It is notably popular in Australia, Brazil, Germany, Italy, Japan, Scandinavia and Britain.

Whilst not nearly as fast as Formula One, the similarity of the cars both to each other and to fans' own vehicles makes for entertaining, well-supported racing. The lesser impact of aerodynamics also means that following cars have a much easier time of passing than F1, and the more substantial bodies of the cars makes the occasional nudging for overtaking much more acceptable as part of racing.

As well as short "sprint" races, many touring car series include one or more endurance races, which last anything from 3 to 24 hours and are a test of reliability and pit crews as much as car, driver speed and consistency.