Vava'u, Tonga is in the South Pacific, 1200 miles north of New Zealand. The Toyots's front wheel suspension on one side rusted through and I had it welded up, then the oil pan started getting major rust which I didn't catch in time either. We braised all the pin holes in it. I remember one Toyota Land cruiser which was rusted throughout like swiss cheese, but, in general, most of the older vehicles here are just holding on with hanging bumpers, missing doors (hinges rusted away) and so forth. The other thing is that the mud here gets so slick that they tend to slide off the road into ditches or trees so body work suffers. Since I got rid of the truck (gave it to my brother-in-law with a strong engine) our roads are largely tar sealed so we don't get so much of the corrosive mud any longer. Relatives who own an auto shop here spray the undersides of their vehicles with used crankcase oil on a monthly basis and that helps. One thing for sure, you learn quickly not to become materialistic when it comes to cars as they just don't last long here and it would be a shame to bring in a fine automobile. I guess there is a similar problem with salted roads in the U.S.