My personal vote would actually be for Acadian, think about it, it could be a kind of revived Pontiac, with rebadged Holdens, the ideal lineup would be:

Beaumont (Coupe/Sedan) (Code 130R/ATS platform)

Canso (Holden Caprice platform)


Canso Sport Deluxe Sedan, Wagon, and Ute (Commodore/Maloo Gen-F HSV platform)


And a body-on-frame compact SUV (Holden Colorado 7 platform)