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  1. Group 5 (motorsport) - Wikipedia

    • Group 5 was an FIA motor racing classification which was applied to four distinct categories during the years 1966 to 1982. Initially Group 5 regulations defined a Special Touring Car category and from 1970 to 1971 the classification was applied to limited production Sports Cars restricted to 5 litre engine capacity. The Group 5 Sports Car category was redefine… See more

    1st Generation Group 5 – "Special Touring Cars" (1966 to 1969)

    In 1966 the FIA introduced a number of new racing categories including one for highly modified touring cars, officially known as Group 5 Special Touring Cars. The regulations permitted vehicle modificatio… See more

    2nd Generation Group 5 - "Sports Cars" (1970 to 1971)

    For the 1970 season, the FIA applied the Group 5 classification to the Sports Car class which had previously been known as Group 4 Sports Cars. The minimum production requirement remained at 25 and the engine … See more

    3rd Generation Group 5 – "Sports Cars" (1972 to 1975)

    For 1972, the FIA applied the Group 5 classification to what had previously been known as the Group 6 Prototype Sports Cars category. These cars, now officially Group 5 Sports Cars, were limited to a 3-litre engine … See more