If the clear is peeling then the person who sprayed it didnt do it right. You can only wet sand and buff single stage so many times before your through.
How many"modern" cars with some age have the clear peeling?? Plenty. Not if they sit in a garage 24v hrs a day though.
But I have done many old Mopars with the "cheap" single stage PPG or TCP Global and they sat outside for more than a few years, and it held up well. BUT I am not a show car guy. I want a solid "driver" with NO rust and reasonably straight to suit me. I want all the material to cost me under $1500. I usually have some primers left over from a previous car, so even less usually.
My old "classics" have always come and gone. I always have to chuckle when a buyer comes t look, and he tells me how he sees some "flaws" in the paint job. I ask him what a perfect show job will cost roughly and he says maybe $8-10,000. Then I ask if he expects a $20,000 car for $6500????? :thumbsup: