Group 1 (racing)
The Group 1 racing class referred to FIA regulations for cars in touring car racing and rallying. Throughout its existence the group retained a definition of being standard, series production touring cars, and of having a character of being unmodified or not specifically prepared for racing. The class was introduced in the then new Appendix J of the International Sporting Code in 1954 and was replaced by Group N in 1982.
From its inception in 1954 until 1965, Group 1, officially documented at first as the first group, was included in Category I (or A), Touring Cars, with a production requirement of between 600 and 1000 cars in a 12 month period. The two categories had up to six groups in this time era, but not consistently or retaining the same definitions.
In 1966 the FIA categories were restructured and Group 1 were placed in Category A, Production Cars, with Category B and C used for Sports and Racing cars respectively. Group 1 essentially remained the same in character but with a heightened production requirement of 5000 cars. In 1982 the numbered groups were replaced by Groups N, A, B, C, D and E.
|I. Touring||A. Touring|
|II. Sports||II. Grand Touring||B. Grand Touring|
|Group 1||Normal series production|
|Group 2||"Grand Touring" series prod||Modified series prod||Modified series prod|
|Group 3||Special series production||Grand Touring Cars|
|Group 4||Series production||Normal GT series prod||Sports Car|
|Group 5||International||Modified GT series prod||-|
|Group 6||-||GT specials||-|
|B. Special||B. Experimental Competition||B. Racing Cars|
|C. Racing Cars||-|
|Group 1||Series Touring (5000)|
|Group 2||Touring (1000)||Special Touring (1000)|
|Group 3||Grand Touring (500)||Series Grand Touring (1000)|
|Group 4||Sportscars (50/25)||Special Grand Touring (500)||Grand Touring (400)|
|Group 5||Special Touring Cars||Sports cars (50)||Sports cars||Special cars derived from Groups 1-4|
|Group 6||Prototype sportscars||-||Two-seater racecars|
|Group 7||Two-seater racecars||International formula|
|Group 8||Formula racing cars||International formula||Formula libre racing cars|
|Group 9||Formula libre racing cars||-|
Note: Special may be replaced with Competition in some official documents.
- "APPENDIX K TO THE INTERNATIONAL SPORTING CODE" (PDF).
- "Appendix J to the International Sporting Code 1955" (PDF).
- "Appendix J, ISC 1966" (PDF) (in French).
- "Regulations - Period Appendix J | FIA Historic Database". historicdb.fia.com. Retrieved 2022-05-19.