Wait wait...so undersides of trucks and cars in the midwest rust after a few years??
No not a few years......months. Dealers were warranting frame rust. They would have it blasted off(third party), then coated to protect the frame long term. If you didnt get that done, 2-3 years into ownership the frames would be falling apart like the Tacomas used to. I have a friend that was a tech at a hummer dealer in their heyday, and it was comical he said. Plus all the black coated pumpers, accessories and tow hooks would be flaking and rusting before the trucks even left the lots new. You dont say huh?