Yeah the price difference is cause by the sringent ADR
(Australian Design Rules) which is all the extra crap that has to be put on to meet the rules for something to be road registered here, specific lights, reflectors, ehaust noise, tyres I think even the front master cylinder has to be changed.
When I was looking at getting an 08 X last year, they said you get all the parts that have been taken off and replaced in a big box, so you can put it back to the way you guys must get them. Lots of good parts, and a spare set of non ADR tyres which is the only good part.