I grew up in the northeast (NY/CT/VT/NH) and never even considered purchasing a used vehicle due to rust issues. I never kept a new car for more than 2-3 for years, due to rust, and other than changing my own oil and brakes I didn't work on my own vehicles. These days (now retired and living in GA on a fixed income) I'm driving 19-20 year old, high mileage/totally rust free vehicles, I do 99%+ of my own repairs and 100% of my own maintenance. No way I'd deal with nasty rusty vehicles. The biggest issues with vehicles in the south is faded paint and cooked interiors, other than that I never have to deal with rusted nuts/bolts, rusted frames or body panels. I keep my vehicles garaged when not in use to protect the paint and interiors. BTW, I've found Ford's interiors have held up way better in the hot Sun than GM or Chrysler products.