Here is a basic powder coat node rig I created. Comes grouped so all you should have to do is link the node to your scene. To perminently install, link into your default scene and press Ctrl+U. I do not use mac so my best guess is it would be Cmd+U, though, I am not sure.
Hey Great material, looks good on a Mustang im doing. I have got a kind of rookie question though, where do you get the model and floor stuff for showing of materials like that? as i would like to make my own materials and need like a base tester scene thanks!