haha its not all sand and tubleweed out here mate!!! I live about 15mins from the start of the 'Great Ocean Road' which is one of the best roads in the world for enthusiasts. Yes, it gets a bit of police attention, but they're only interested in bikes.
There are plenty plenty more as well, but Tasmania (that little island underneath the mainland australia) is just chocka block full of incredible mountainous twisty roads with little traffic and zero police
Sam