In Edmonton Canada. Much salt and other 'melter' compounds on the road here. We had one environmentally conscious mayor who tryed to moderate the use of the stuff but no luck after she left...

The 544 had been rolled into a ditch in a winter white out when we bought it, and by dad arranged for it to be fixed by a local pastor who did bodywork on the side and his recently immigrated Phillipino helper. (this situation was ironic as my family and myself are non-religious). It rusted out again, and was redone by another fellow. Right now it looks good from a distance, but the rocker panels are entirely gone. Entirely.. as in there is no bottom to 'em. Don't think you could jack the car by the rockers at any point in the last 20-25 years. From 74-83 and from 99 to present, the rear fenders have been loose at the bottom front, as ther ewas no metal to attach to.

The 142 has the front longitudinal subframes completely gone, but I have 3/16" thick reproductions made to repair them. The rear inner fenders and fender lips have been redone and need it again. The trans cross member has fallen out of the car once when driving... It's sort of hacked together the past couple yesr in that area, but the new fabbed pieces will fix that. The lower winshield needs a repair panel....the hood hinge mounts have been redone at one point and need redoing again.

Really, we regard this as par for the course around here. My Dad's 1982 245, bought new, hasn't been wisely body-jackable in some time, and it got very little winter use the first several years. It's had the rear arches redone twice... The 73 145 we used to have had perforation in the rear arch area within 4 years.
The 700's do seem to last well and the new-nose 240 almost as well...