The FIA established Appendix J regulations for Touring and GT cars for 1954 and the term Group 2 was in use to define Touring Cars in the Appendix J of 1959. By 1961 Appendix J included specifications for both Group 1 Series Touring Cars and Group 2 Improved Touring Cars with a minimum production of 1,000 units in twelve consecutive months required to allow homologation of a model into either group. Technical modifications beyond those allowed for Group 1 cars were permitted in Group 2.
Group 2 was the specified category for the European Touring Car Challenge from 1963 to 1967  and the cars were also eligible alongside Group 5 special touring cars in 1968 and 1969. It was again the premier category when the series was renamed as the European Touring Car Championship for 1970 and continued to be so until it was replaced by Group A for 1982.