I am about to take delivery of a 2004, 8 cyl, Limited with Nav, Stratoshpere Mica, 4Runner. The reason I bought a new vehicle is because my 12 year old Explorer with 147K on it,that runs perfectly, has rusted out from under me enough so that it won't pass inspection. I keep cars for a long time and want to prevent a repeat of this. What can I do from a maintenance perspective to make the body last as long as the rest of the car? By the way. I live in New England where salt is just another paving material.