PPG = Pittsburgh Paint & Glass
I must be the only person in the world who does not like black cars. They're hot and impossible to keep clean, but far worse than that, black hides all the details like the intake openings, vents, reveal lines, door handles, etc. Black cars all look monolithic to me.
I like light or bright colored cars, yellow and red being favorites. I love the new Evo VIII blue.
I also like occasional darks like real British Racing Green. I don't know how it's possible for PD to have put so many dark greens in the game, even on the British cars, without a single one of them ever actually getting it right.