I have worked in multiple GM plants and, to be honest, the paint is poor. The last plant, Arlington where I just retired, has a brand new paint shop and still no real improvement in the paint. The #1 problem (and has alway been since the 90's switch to water borne paint processes) is ENVIRONMENTAL. The older paints of years gone by were easier to use and dried uniform as well as other nice "quality" attributes. The the EPA came in and paints suffered terribly in it's ability to spray uniform and dry well while meeting tough EPA laws. Today's paintshops - like I have been in - is automated yet still have a lot of people doing preparations, paint sanding, repairs etc. The issue with orange peel is the OEMs trying to get the LEAST amount of paint on a car to be glossy and somewhat durable. Less paint means less cost and weight. Now the other end of the spectrum is dirt and craters etc in the paint. I cannot tell you how many craters or dirt specs you will see on a new GM Tahoe/Yukon/Escalade/Suburban but I can assure you that if go look at one you will see them all over. The hoods and upper 1/4 near the glass will ALL have them. It's a combination of not maintaining air filters, human element and the gov't regulations that have brought paint quality to the lowest level ever.