A Sandman is not a muscle car! By the broad US definitions i've seen I think the only Aussie car that is a muscle car in that sense is the HK GTS327, but that is a bit silly as there are other Aussie 2 doors that went a lot harder like a HT-HG GTS350 manual, XA RPO83 and E38/E49 Charger.

I think HQ-HJ (at least) could go wherever an SL/R, GTS etc goes - some sort of sports variant class. These all share some common traits like 6cyl up to V8 engines, floor shift 4spd or auto etc. I wouldn't include premium performance vehicles like L34, A9X, HK-HQ 1837 and HQ XW8 in this class but the rest sort of belong.

Or maybe you would create a "Sports Utility or Commercial" category, which would allow for inclusion of Sundowner, Drifter, Maloo, VSIII SS etc. And also cars like SS El Camino etc.

Good question Blocker!