Hi i post here since we can't modify the shaders. i just want to show what it's needed on a carbody shader IMO please don't judge my example, it was just a test, i know this not perfect, too bright etc. but i think it is pretty good to show what i mean in this case. so, a real life example : View attachment 1109 from this, we can adapt the shader to have this kind of result : View attachment 1110 as said earlier, i know this is too much here, but we can see well the differents parts. extract from rf1 shader : here an another example from forza with better parameters and same kind of color : we saw here that the specular have some issues at this moment : http://isiforums.net/f/showthread.php/3558-Specular-issues-with-car-body-in-rf2 that's why i'm talking only about spec here. Hope this kind of things will be added during the fix cheers