This group is intended to cater for Formula Ford racing cars powered by the 1600 “Kent” engine, within the various sub groups set put below.

Fa

Vehicles with a competition history established prior to 31 December 1977.

Fb

Vehicles with a competition history established between 1 January 1978 and 31 December 1983 but excluding the Swift DB1.

Fc

Vehicles with a competition history established between 1 January 1984 and 31 December 1989.

This group caters for Formula 5000 racing cars, being factory cars which must have been constructed before 31st October 1977 or, if an Australian built car constructed specifically for F5000 and raced in F5000 events, must have been raced before 31st December, 1977.

This group is intended to depict early racing design and development to include the important field of significant excellence in design and workmanship defined as the “vintage period”. Vehicles eligible are racing and sports cars with a competition history established before 31st December 1930. One-off special type vehicles constructed at any time using major components manufactured prior to the end of 1930 are catered for in Group Jb.

This group caters for cars with a competition history established between 1st January 1941 and the 31st December 1960.

It is divided into two sub-groups viz:

Lb – Racing Cars and Sports Cars

This group caters basically for cars built for competition, either factory built or “one-off” specials.

Lc – Square Riggers

This group caters for “square rigger” sports cars (primarily MG TC) where it was common practice to remove the windscreen, mudguards and headlights and run as a racing car, at the whim of the owner. One-off special type vehicles constructed at any time after 1 January 1940 but prior to the end of 1960 are also catered for in this group.

This group is intended to cater for racing, sports racing and clubman sports cars with a competition history established between 1st January 1961 and 31st December 1965.

This group caters for production touring and touring cars built before 31st December 1972. The group is divided into three time periods defined as Na, Nb and Nc, and is unique in that individual cars are not required to have a competition history in order to be eligible.

Na

Group Na is for production touring cars as recognised by Motorsport Australia and commercially available in Australia prior to 31st December 1957, with the inclusion of certain run-on models.

Nb

Group Nb is for series production type touring cars manufactured prior to 31st December 1964 of which 100 of the particular model must have been produced (also known as Appendix J). This group is open to cars which were built and established a competition history either in Australia or overseas, provided the make and model was homologated with the FIA.

Nc

Group Nc is for touring cars of a make and model which competed in Australia between 1st January 1965 and 31st December 1972 in either the Australian Touring Car Championship or in races specifically for the 3rd Category Group C Improved Touring Cars.

This group is intended to cater for racing and sports racing cars with a competition history established between 1st January 1966 and 31st December 1969, but specifically excluding cars fitted with the early forms of aerodynamic devices which appeared towards the end of this period.

This group caters for racing and sports racing cars with a competition history established between 1 Jan 1968 and 31 December 1972, which competed with the combination of early aerodynamic devices and treaded racing tyres.

This group caters for racing and sports racing cars with a competition history established between 1st January 1970 and 31st December 1977, and for cars excluded from classification in earlier historic groups because of the nature of the aerodynamic devices with which they are fitted.

This group caters for racing, sports racing, and clubman sports cars complying with period rules for specific racing formulae, with a competition history established between 1st January 1978 and the various end dates as detailed in the Motorsport Australia Manual.

This group caters for production sports cars which were manufactured between 1st January 1941 and 31st December 1977. The group is divided into three time periods defined as Sa, Sb and Sc.

Sa

Group Sa is for production sports cars, as recognised by Motorsport Australia, manufactured between 1st January 1941 and 31st December 1960 with the inclusion of certain run-on models (e.g. Mk1 Austin Healey Sprite).

Sb

Group Sb is for production sports cars generally manufactured between 1st January 1961 and 31st December 1969 with the inclusion of model run-ons.

Sc

Group Sc is for non-turbo charged production sports cars generally manufactured and available in Australia between 1st January 1970 and 31st December 1977 with the inclusion of model run-ons.

This group caters for production sports cars with a competition history established after 1 January 1941 and before 31 December 1981 and for factory competition variants either built, or with a competition history established between 1st January 1941 and 31st December 1977.

This group caters for vehicles with a competition history established in the period pre-1986 in events run to regulations promulgated by Motorsport Australia for Sports Sedans – Group B (including Sports Racing Car Closed and GT Performance Cars – Group D).

This group is intended to cater for Formula Vee 1200 racing cars within the two sub groups set out below.

Va

This group is intended to cater for Formula Vee racing cars with a competition history established in the period between 1 January 1965 and 31 December 1974.

Vb

This group is intended to cater for Formula Vee racing cars with a competition histoy established between 1 January 1975 and 31 December 1985.