Re: The Burgundy Prospect

As I said in a earlier post, some paint shades lighten, others darken as they age. And yes there are UV and chip resistant top coats, (clear polyurethane works well, but even it eventually yellows a bit.)
There should be people at the paint companies with with all this knowlege. The real trick is in picking their brains for free, or at least dirt cheap. The solution you seem to be looking for is a paint, or paint + coating that 1. resists fading at high altitudes in the first place, and 2. ages gracefully when it does fade.
I also can't help but wonder how often a tourist road coaches SHOULD need a repaint. What does Strasburg, or Ohio Valley do? Do they repaint yearly (okay the Strasburg does it before and after every movie), or is 3 years realistic? is 5 years? Or should we realistically expect the paint to last 10+ years, and still look acceptable?
IMHO one of the big problems with many greens the railroads used is they look so drab, another is that green goes in and out of style, it was "in" on cars in the late 60's early 70's, but 5 years later, an avacado, emerald, or jade car was an albatross to the dealers. As of late it is back. I remember not being able to GIVE away a perfectly good refrigerator simply because it was green.
BTW I don't recall anybody suggesting Milwaukee orange. I wonder whether it goes toward yellow, or towards red? Harley-Davidson has used orange and Black for years, so it might just be macho chik