Hmmm....well when I was considering doing them, I was thinking about sticking to the only two colors on my black car...the orange side markers or red. When I got to thinking about all the brake dust and road crud, I was wondering maybe it didn't matter what I painted them...they'd end up black anyway. You appear to have the advantage of only using your drop top during the summer months, so you can keep it clean. I'd be curious to know if painted calipers keep their color. If they have to be cleaned periodically, does brake cleaner take off the paint leaving partly painted calipers? Should you take them off the brake lines or just cover everything in the wheel hubs (i wouldn't want pray paint anywhere near my car, but it'd probably work if you use a brush?). Who has experience with painting calipers and knows how they hold up?