This shop isn't necessarily targeted towards automotive products, however you could use them for your car needs.
Anyways! I designed a small part for my car on solidworks and decided to send it out for CNC. This shop did it for a really reasonable price. The over all parts dimension was 8" x 6" 6061-T6. And they charged me 18.50$ per part including
They were real quick with the service, and the part came out exactly like I designed it. I couldn't be any happier with it. The people that work there are also really helpful, and awsome!
Incase anyone is interested, this is their link R.E. Fabricators | Home | Services, Water Jet, Projects, Contacts