Unfortunately, we can't get most of these cars in RHD (right hand drive for our non-UK pals) - even Mack etc. trucks, when sold in Oz have to be RHD, but if imported over here, all we get are left hookers (sorry, UK slang for left hand drive).
If they can make some in RHD for other markets, why can't they send some here?

I've owned one LHD motor in this country (an ex-USAF Dodge W200 pick up) tall enough that being on the 'wrong' side didn't really matter, but I wouldn't really want to drive a performance car while sitting next to the kerb... Lack of forward vision being the main reason.