1961-1965 Sports racers
McLaren
For cars built between 1961 & 1965 inclusive. The Group M class in Australia is for cars that can prove their provenance on being the car that competed during this era.
1966-1969 Sports racers
For cars built between 1966 & 1969 inclusive. The Group O class in Australia is for cars that can prove their provenance on being the car that competed during this era.
1970-1977 Sports racers
For cars built between 1970 & 1977 inclusive. The Group P & Q classes in Australia are for cars that can prove their provenance on being the car that competed during this era.
Post 1977 Sports racers
For cars built post 1977. The Group R class in Australia is for cars that can prove their provenance on being the car that competed during this era.
Historic Racing Australia 