It's also very true among Street/Hot Rods ...they put on 20-50k worth of paint and clear work it had better outshine a wax ...but to say all ...I doubt it...some do some don't ....some only use hand glazes and polishes to bring out those great shines...
one guy told me once that the reason he didn't use any silicone or wax products was because he repaints constantly..his Rod has no fenders and he's always kicking up a rock or something that will cause him to get deep scratches and then he repaints....he also owns a body shop...
To each their own...factory paint work can not be compared to these finishes...
