Part of the reason we are seeing late 80's and early 90's vehicles peeling was a massive change to paint formulation then- removing lead and lowering solvent VOC's. It took a few years for some of the manufacturers to get it right, and for the most part, they have. I have owned a few new (and newish) vehicles of American, German, and Japanese manufacture over the last 15 years, driven them daily, parked them outside, and only washed and waxed them when I had time, which wasn't very often. I haven't had a single problem with paint (other than chips and vandalism, which arent the fault of the paint).
I expect similar teething problems with water based products. A lot of the failures were application problems. I'm looking forward to the day when I can spray a vehicle in my garage with only a particulate respirator and not worry about sickening myself or having to worry about the air quality in my neighborhood. Some of the chemicals used now may not be all that terrible for the environment when well diluted, but they play havoc on the central nervous system.
At least most modern vehicles have the paint failing from the outside instead of the inside. Modern technology really increases the life of body panels before they rust out underneath the paint.
