Someone will have to double check to see if this works as intented, but here's my Green Car Paint material below as the forums don't seem to like xml files much. As with Snarlygribbly's post, copy and save the material with the .xml extension. Let me know if there are any problems with the material code.

And thanks Snarlygribbly for cleaning up my slight mess in the roucgh leather material. Looking at the original material made me almost want to cringe.

   
   
    <material name="Green Car Paint" type" ["carpaint"]

        "color Kd" [0.124526 0.294963 0.203289]
        "color Ks1" [0.754852 0.773852 0.500392]
        "color Ks2" [0.442047 0.629024 0.290352]
        "color Ks3" [0.227329 0.546751 0.374624]
        "float R1" [1.000000]
        "float R2" [1.000000]
        "float R3" [1.000000]
        "float M1" [1.000000]
        "float M2" [1.000000]
        "float M3" [1.000000]