Was reading this thread and wondered haven't automakers really improved the corrosion resistance of vehicles vs. 40 or more years ago? Have lived in the North and have been in Florida last 4 decades. Remember how my Dad's cars corroded around fender wells and rocker panels from all that road salt. Down here, the Florida variety of body 'cancer' was distinctive because it always seemed to develop around the windshield and back glass, especially if one lived at or near the coast. Don't see it anymore. Agree wherever one lives, regular cleaning, wax application, and undercarriage flushing with water do seem to make a difference.
