If anybody ever visits Victoria, Australia, be sure to take your hire car along the Great Ocean Road. It's about 150 km of pure driving pleasure - along with some fantastic scenery as well.
I just got back from 4 days down there in my 5th Gen SS (no mods yet, but still fantastic). I live in Melbourne, which is a couple of hours drive from the Great Ocean Road.
Seriously, this road is known as being one of the best driver's roads in the world.