Ahh yes!  templargfx the guru of making cars shine! He has a great freebie here for car materials.

You might find some more links in this thread:

http://market.renderosity.com/mod/forumpro/showthread.php?message_id=2635214

If some renderosity links don't work, tag the numbers at the end of the link to this one and it will work:

http://market.renderosity.com/mod/forumpro/showthread.php?message_id=

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi