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Group CN
This article is about the sports car classification. For the media group, see CN Group. For the Canadian corporate group, see Canadian National. For the algebra group, see CN-group. For the cyano-group, see cyanide.
Group CN is a category of vehicles used in motorsport, introduced by the FIA in 1993 for sports car racing.[citation needed] Group CN cars are mainly used in hillclimbing championships or sports racing series. Group CM is a non-FIA class which is closely related to Group CN.