I bought up a few cans of Krylon Fusion #2521 rattle can paint called “Graphite” based on a recommendation years ago. I think I have 4-5 cans left and I know they were not cheap. A mopar shop had them. This past summer I used a can on my extra 67 GTX panel to see if the paint was still good. I think it came out pretty good. Has a nice dark sparkle to it. Might be worth trying to find a can or two, I know they are obsolete now but maybe some place has them on the shelf or I may let a can or two go…I don’t really paint much anymore. Pics don’t really show the glitter effect well.