It's definitely looking better, I'll give you that.
Still a few tweaks I could suggest though.
-The taillights, they still need more character to them. Maybe apply a texture to them rather than just a material since modeling the extra detail would be a pain.
-The paint looks odd in places, though I think that's due to some refraction problems, maybe try and get rid of the "flake" paint and stick to a matte or gloss finish.
Once you get those two sorted out, you'll just need to add a few polys to the roofline to smooth it out and you'll be set.