DuPont split off the auto paint line a while back, now called Axalta. Nason is still under that umbrella as the "economy/budget" product.
Top of the range is Standox, which has been my favorite refinish product for a long time.
I have several cars with Standox on them: good high-solids product, wide library, lays out nicely, lives forever.
But those vehicles are BC/CC.
Bought some Nason single-stage a few months back, color was off but I didn't use my usual guy.
Some colors are pretty transparent: the Jeep grey is one of those. But that was BC/CC.