Heres a  list of Australian car forums for specific makes and models of vehicles listed.

BMW car forums

Holden car forums

Ford car forums

car club

Chrysler car forums (site appears down) (site was down recently)

Mazda car forums

Nissan car forums

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Full List Of RACV Car Clubs Across Victoria An index of car clubs registered with RACV. If you’re into a particular marque or a distinct model, you can share your interest with other like-minded car fans.
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Full List Of  Vintage car clubs Across Victoria Shannon's Auto auctions page listing vintage car and collector clubs around Australia.

Toyota car forums

Mitsubishi car forums (delica users) (Model specific Lancer GSR and Evo forum)

Honda car forums

Daewoo car forums
No Daewoo forums found

Hyundai car forums
No Hyundai forums found

Subaru car forums

Ferrari car forums

Peugeot, Citroen, Renault,  French Makes of motoring clubs

Renault Sport & car forums

Subaru forums

VW forums

Other car clubs around Australia