My first 65 Barracuda was flat black! It wasnt primer because it was smooth, not like a chalkboard or slate. It looked pretty cool with its chrome bumpers and rims and stainless strip over the rear fenders, hi-jacker air shocks in the back 80's style to clear the lip over the 10 inch wide tires. Hilarious! I painted the top of my 57 Fairlane in primer white and that would get dirty overnight, it felt like a chalkboard and was a dirt magnet.