It's usually not the paint even though there are many different quality's of paint, it's the prep work.
I had mine with a full body paint job used the best paint available in U.S and Mexico and it came out beautiful and is still shining after 6 years. Painted in Algodones Mexico in a booth. My advice if you are having a big job make sure of the paint quality.
We used BASF R-M paint, clear coat and lacquer none of which was water based.
Chuck n Sandy
Roxy the Kelpie and Kiki the cat.