Imron paint, that is some tough stuff as it is what was put on my dodge in 1984. It was my buddy's car then and he was proud of that imron paint. Still shines pretty good today after lots of wear and tear and many miles.
Like said above I took a panel off my plane into the auto paint store and they used a camera to match the color when I painted that exhaust cowling. If you are doing a over all paint then matching is not so critical. I need to paint the top of my cowl. The paint is blistering off from the incredible speeds this plane achieves.
Spraying that stuff is dangerous, best to use protection. I have sprayed a lot of it on tanker trucks.