We import a lot of cars from Japan. I'd say that approximately 20% of our traffic is imported JDM cars (mainly consumer cars like the Mazda Demio, Toyota Yaris, Honda Fit, Suzuki Swift, etc.). We also import a lot from the UK, but this has decreased after Brexit.
Apart from the consumer vehicles, two of the larger, well-known dealerships frequently import iconic '80s/'90s JDM cars.
I haven't heard of anyone importing from Australia, and they are not advertised (unlike Japanese ones), despite a lot of Maltese migrating to Australia in the '50s and '60s.