Mine sat in inside storage, usually heated, for 25yrs or so and 2 in the old barn and wasn't 10 years old when I got it. When I cut the 1/4's off, I found the 1/4's had already been patched, as was the rt frt hinge pillar. I further found that there was bugger all on the inside of the 1/4's outside of the rear trunk area, not even primer- bare a$$ steel. The guy who sold Mother Mopar the body sealants must have a penthouse in New York judging by the wads of it I dug out of the poorly fitted seams and the guys who fit/built it had to be either alcoholics or blind or both. The rust, as mentioned seems to never stop and that's after having the car stripped and blasted. If it wasn't what it is and I wasn't like I am; a sane man would have said "to hell with it" long ago. Hows that old saying go?..."non illegitimi carborundum"? loosely translated- "don't let the ba$tards grind you down"! ONE DAY, I will ride this hoss again! Keep the faith brothers.