Pretty sure the wing and mirror caps are G1 (Shadow Black). I thought the trunk lid panel was just black plastic, but I'm probably all wrong. There's a lot more folks on here more knowledgeable than I am about paint for these cars. I have a black GT350 and it says G1 on the sticker.
I think I read somewhere that those black parts (wing, caps and trunk panel) are not painted but manufactured with the color in the mold. Some sort of color impregnated process? Could be wrong but I do know they are very easy to scratch.