I do not know if they will paint an entire car (although I don't know why the wouldn't), but I have had a bumper replaced/resprayed on a black car and I thought these guys did a very good job.

Color Customs in Denton, TX. Auto Body Shop, Collision Repair | Denton, TX

I have also had a vehicle repaired due to a wreck at Caliber Collision in Lewisville. Although the paint job is great (even hand repainted my "Ford logo" on the pin stripe), I cannot recommend them due to poor dis-assembly and re-assembly. I had to repair or replace several items that were not assembled or handled correctly.