Well nothing really good. Thomas Baron (Tom120934) has a nice little tut on blueprint setup, on his
homepage, and a little about shader setup in Yafray and Yaf(a)ray - but i'm ore into the renderes mentioned above at this time - the MLT might be slow but the results are nice - btw how long to render the rim?
There is a cars issue of
Blenderartmagazine I believe issue 8. (Tom contributed to this).
And I have tried (still in process) doing the
Fiat500 on 3dtotal.com, while it's made for 3dsmax it is possible to do - but 3dsmax has some options that is not in blender.
Else I look at the mesh shots posted here - which usually leads to just general drooling over the cars shown, or selfpity

over not having the ability.