The rear tire is not yet available down under, to be honest It will be hard one to get as it's an odd size no other tire fits on another vehicle with those dimensions?
It may end up being a bad decision by DB
So if no one buys them down here maybe they wont bring them in , or deleate it as an option, I read last year Ireland said it would retain the dual wheels and possiably the UK! But that was only a media link. In fact the most information I have seen so far about this , is from yourself
I suppose the US would have it when it becomes available, but they seem to miss out on many options as well, so who knows.
Richard.