I started painting my cars yellow so I could see the thing as it goes around the track; old age is a pain sometimes.
I gave up on show quality paint & use spray bomb tractor paint with some vinyl to mimic the old Wynn's Friction Proofing style. It takes time and only looks good from 20 feet away but it is what I can afford.
When we raced with Badger in the 1970s there was a rule about "professional appearance." You were allowed only ONE race weekend in primer. After that you had to look decent. That said, we selected a paint color to match duct tape and requested #11 so we could number it with fancy engine turned foil tape. No money for a sign painter.
What about the safety issue of so many black cars? Didn't the USAC Focus west division have issues on poorly lit tracks?
Team cars can at least put contracting tape on the roll bar padding to help the scorers.