Group CN is a category of

motorsport Motorsport, motorsports or motor sport is a global term used to encompass the group of competitive sporting events which primarily involve the use of motorized vehicles. The terminology can also be used to describe forms of competition of t ...

, introduced by the

FIA FIA is the Fédération Internationale de l'Automobile (English: International Automobile Federation), the world's governing body for all forms of motor sport where four or more wheels are used. Fia or FIA may also refer to: People * Fia Backs ...

in the early nineties for

sports car racing Sports car racing is a form of motorsport road racing which utilises sports cars that have two seats and enclosed wheels. They may be purpose-built prototypes or grand tourers based on road-going models. Broadly speaking, sports car racing is ...

. Group CN cars are mainly seen in

hillclimbing Hillclimbing, also known as hill climbing, speed hillclimbing, or speed hill climbing, is a branch of motorsport in which drivers compete against the clock to complete an uphill course. It is one of the oldest forms of motorsport, since the firs ...

championships or sports racing series. Group CM is a non-FIA class which is closely related to Group CN.

Major racing series

PRCCN07 NormaM20F SportsCarChallenge Hockenheim 2010

Group CN rules are applied to a variety of championships. Many championships alter the rules in their own way like the Radical European Masters and V de V championships.

Radical European Masters

The Radical European Masters is a spec racing series in Europe. It features the Radical SR8, Radical RXC Spyder and

Radical SR3 The Radical SR3 is a race and sports car produced by Radical Sportscars, which has been built in Peterborough since 2002. The vehicle is considered a further development of the Clubsport 1100. History Designed by race car designer Mike Pilbeam, ...

, each in their own class.

V de V

The French-based V de V organisation features two FFSA Group CN based classes. The endurance championship is open for any chassis and engine within the regulations. The V de V organisation also features the Funyo Challenge open to

Peugeot Peugeot (, , ) is a French brand of automobiles owned by Stellantis. The family business that preceded the current Peugeot companies was founded in 1810, with a steel foundry that soon started making hand tools and kitchen equipment, and then ...

powered Funyo 4 or Funyo 5.

National championships

A Group CN racing class exists in many countries, many of which utilize radicals. Examples are the

Radical UK Cup Radical may refer to: Politics and ideology Politics * Radical politics, the political intent of fundamental societal change * Radicalism (historical), the Radical Movement that began in late 18th century Britain and spread to continental Europe a ...

which features the Radical SR3 and the

Open España Prototipos Open or OPEN may refer to: Music * Open (band), Australian pop/rock band * The Open (band), English indie rock band * ''Open'' (Blues Image album), 1969 * ''Open'' (Gotthard album), 1999 * ''Open'' (Cowboy Junkies album), 2001 * ''Open'' (YF ...

GT & Prototype Challenge

Ran as part of the Benelux-based Supercar Challenge, the GT & Prototype Challenge allows Group CN classification cars to compete; current competitors include the

and Norma M20 FC.

FIA Group CN technical regulations

References

{{Class of Auto racing Sports car racing Fédération Internationale de l'Automobile Racing car classes