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Touring car racing is an auto racing competition with heavily modified road-going cars. It is popular in Argentina, Australia, Brazil, Britain, Germany, Sweden and Norway. While 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 comparatively lesser effect of aerodynamics also means that following cars have a much easier time of passing than in 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. ==Characteristics of a touring car== While rules vary from country to country, most series require that the competitors start with a standard body shell, but virtually every other component may be allowed to be heavily modified for racing, including engines, suspension, brakes, wheels and tyres. Aerodynamic aids are sometimes added to the front and rear of the cars. Regulations are usually designed to limit costs by banning some of the more exotic technologies available (for instance, many series insist on a "control tyre" that all competitors must use) and keep the racing close (sometimes by ballast weight where winning a race requires the winner's car to be heavier for subsequent races). In this, it shares some similarity with the American stock car racing (governed by NASCAR). However, touring cars are, at least notionally, derived from production cars while today's NASCAR vehicles are based on a shared, custom, design. In the early days of NASCAR, stock cars were in fact built from production cars, whereas some current touring car series are also raced in silhouette racing cars. Touring cars race exclusively on road courses and street circuits, while its American counterpart predominantly utilises oval tracks, with road courses constituting a small percentage. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Touring car racing」の詳細全文を読む スポンサード リンク
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