LOL, I'm not sure total road kg's counts, but nice try Marjeanie!!
When dad comes to visit us in Aussie, he drives. Very carefully mind you, but he does drive. The country roads are loooonng and reasonably straight in Western Australia, so he feels safe (he has a slight tendancy to over compensate and hug the roadside). However, I doubt very much that he'd want to drive in NZ. Maybe from Chch to Dunedin; this route is on the coastal plain and it's very straight and uneventful. The mountain driving is hairy, it certainly makes my stomach flip flop from time to time even though DH is the one doing the driving. When we move to the states, what I intend to do is take a few driving lessons. This way I'll feel a bit more confident to venture forth.