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Group CN

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Title: Group CN  
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Subject: Group 2 (racing), A1 Grand Prix, Y.O Concept, Asian Le Mans Series, Formula Continental
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Group CN

Group CN is a category of motorsport, introduced by the FIA in the early nineties for sports car racing. Group CN cars are mainly seen in hillclimbing championships or sports racing series. Group CM is a non-FIA class which is closely related to Group CN.

Major racing series

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 and Radical SR3, each in their own class.

Speed Euroseries

The Speed Euroseries is an open sports racing class based in Great-Britain. There is a free choice of chassis, like Norma and Ligier. All cars are powered by the Honda K20A engine.

V de V

The French based V de V organisation features two Funyo Challenge open to Peugeot powered Funyo 4 or Funyo 5.

National championships

A Group CN racing class exists in many countries. Examples are the Radical UK Cup which features the Radical SR3 and the Open España Prototipos.

FIA Group CN technical regulations

Engine Maximum of 6 cylinders and 3000cc, homologated by the FIA in Group N.
Drivetrain Free, with a maximum of 6 forward ratios. Reverse gear is compulsory.
Maximum dimensions Length: 4800mm
Width: 2000mm
Height: 1030mm
Front plus rear overhangs not to exceed 80% of the wheelbase.
Difference between front and rear overhangs not to exceed 15% of the wheelbase.
Bodywork Open or closed cockpit
Rear wing Maximum of 2 elements, which must fit within a 150x400mm cross section. Maximum span of 1800mm
Weight Related to engine capacity
Up to 1000cc: 475kg
1000cc - 1300cc: 495kg
1300cc - 1600cc: 515kg
1600cc - 2000cc: 535kg
2000cc - 2500cc: 575kg
2500cc - 3000cc: 625kg


See also


  1. ^
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