A lot changes in 3 years. Nowadays guys are willing to import VW Sciroccos and Maserati 4200GT's.
That said, you need to find a spec of a Euro model that wasn't sold locally, one that's highly sought after but not brought into the country because local dealers were too limp wristed to risk bringing in and not being able to move. Otherwise it's not really worth it.
The Audi RS3 is a perfect example, you can buy an A3 or S3 locally, so it's ineligible for import, but there's plenty of guys willing to buy an imported model. Same goes for Citroen DS3 Racing. The other side of the coin is the BMW 116D, rated as one of the world's most fuel efficient cars, but not available in oz. Even some specs of the Ford Mondeo released in the UK aren't available in oz (not that you should buy one). Some of these work their way to Japan as imports.