DAMIEN O'CARROLL/IMAGES SUPPLIED Forget the obvious Aussie concepts like the Efijy, Hurricane and Commodore Sandman - here are five slightly more obscure Aussie concepts that we really wish had made it into production. Regulations set down by FISA, the international governing body at the time, stated a minimum of 500 road-going versions be built for Group A homologation, but HSV only managed to produce 302. However, this didn’t affect the Group A SV's homolgation, because the Confederation of Australian Motor Sport (CAMS) gave Holden special dispensation, in the hope of bolstering thinning...