I must say, when we lived in North America the absence of bendy roads made me understand why there was an obsession with "muscle cars". We would drive miles to get to a road with a few twists in it...just to drive that road!
Mainland Australia can be a little like that on the major highways, especially on the modern ones. Tasmania is more like UK. Hills, villages and things like that. Strange little junctions in the towns, until you realise houses were there since 1810, so the roads went around them.
It's strange because Australian culture has picked up influences from both places and you get big muscly cars like Monaros and Toranas mixed in with Minis and Morris Minors.