I honestly don't think I'm touching much else. The windows can't be tinted by the way. The glass on these has the same issue with any glass in any other locomotive I've seen. Painting the alpha white to make the color layer solid (instead of translucent) in turn makes the texture super shiney and highly unrealistic looking.
I like them the way they are.. I'll do the coach car tomorrow.
EDIT: GAH. How could I forget the red pinstripe on the bottom.
