Take a look at Forza's material talk at GDC for a bit more advanced look at car paint shaders. Theres some code there if I remember correctly from attending the talk. Was a good talk about their material system.
Awesome! Okay so I went ahead and added the fresnel and it already looks much better. I will try next adding normal map red and green channels as well as research Forza's GDC talk though I'm not much of a coder, it will still be useful.