I'm sorry but I don't work in the Aussie market so i'm not sure when new products arrive there. We use a distributor there (there isn't a Carrera of Australia I mean).
I guess you should contact them to see when items will arrive there.
http://www.zimbler.com.au/The GO/D143 cars BTW will arrive first! I see this morning in my email that's getting put on a container any day now to arrive here (at CoA)