The International Association For Owners And Drivers Of Historic Grand Prix Cars

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CLASSES

Cars competing in events supported by the HGPCA must be of the type that competed in Grand Epreuve races on or before 31st December 1965 and will be categorised into one of the classes below.  The Association reserves to right to amalgamate classes as required.

Front Engine Cars

Class 1               1925 - 1934 Grand Prix cars running on 18” or 19” wheels

Class 2               1935 - 1951 Grand Prix cars running on 18” or 19” wheels (cars running with smaller wheels must show period evidence)

Class 3               Pre 1939 1.5 litre Voiturette cars on 16” wheels

Class 4               1930 -1951 Grand Prix & Voiturette cars over 1.5 litres on 16” wheels

Class 5               1952/53 2 litre Grand Prix cars

Class 6               1954 -1958 Grand Prix cars on 16” wheels

Class 7a              Pre 1961 front engine Grand Prix cars on 15” wheels

Class 8               Formula Libre, Indianapolis and Intercontinental cars                        

Invitation Class

 

Rear Engine Cars

Class 7b              Pre 1961 Grand Prix cars on 15” wheels

Class 7c*            Pre 1961 Formula 2 cars of not more than 1.5 litres

Class 9                Pre 1961 Grand Prix/Formula 2 cars of not more than 2 litres

Class 10a            Pre 1 Jan 1964 1.5-litre 4-cylinder Formula 1 cars

Class 10b            Pre 1966 Formula 1 cars and 1964/66 Formula 2 cars of not more than 1000cc

Class 11              Pre 1966 1.5 litre multi-cylinder Formula 1 cars

Class 12              Pre 1966 Tasman and Intercontinental 4 cylinder cars of not more than 2.7 litres

Invitation Class

* Class 7c - 1.5 litre Formula 2 cars may be included in front-engine races

2024 Technical and Sporting Regulations - CLICK HERE TO DOWNLOAD

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