sorry for the confusion. the car has been primered a while ago (from a spray gun), but I have done quite a bit of body work on the nose piece, and just used rattle can to make it look halfway decent.
So basicly, just add the flattening agent to whatever goes on top? Which would be stronger, clear with the flattening, or paint with the flattening? I want something that won't stain or scratch easy. I assume that the clear woudl be stronger, because thats usualy the last coat on the car, right?