Group A

Group A is a set of motorsport regulations administered by the FIA covering production derived touring cars for competition, usually in touring car racing and rallying. In contrast to the short-lived Group B and Group C, Group A vehicles were limited in terms of power, weight, allowed technology and overall cost. Group A was aimed at ensuring numerous entries in races of privately owned vehicles.

Group A was introduced by the FIA in 1982 to replace the outgoing Group 2 as "modified touring cars", while Group N would replace Group 1 as "standard touring cars". During the early years there were no further formula for production based race cars. Cars from multiple Groups could contest the World Rally Championship for Manufacturers for example until 1997 when the specific World Rally Car formula was introduced as the only option. In recent years Groups A and N have begun to be phased out in eligibility in championships though they continue to form the homologation basis for most production based race car formulae including the Groups Rally which must first be homologated in Group A. Both Groups N and A, and the details of their differences are described in the FIAs International Sporting Code and several of its Appendices J articles.^{[1][2][3][4][5]}