A couple of things, my 97 f-150 had an aluminum hood, never had any problems with it in the 7 years I owned it, audi has been making cars out of it for at least 10 years on the tt if I am not mistaken, all that said, I work in the trucking industry in s.e. mi, the chemicals that wayne county put on the roads in winter eat the equipment up big time, air bag pedistals, fuel tank corrosion issues etc, I think if they apply the correct paints and primers it may not be an issue for rocker panels and floor boards, but at this point I would be a little skeptical about such a vehicle in the northern tier of states, just my thoughts!