You know, I didn't even know that the work I had submitted was used. Is it the Rolex Watch? I'm in the U.S.A. and the new issue hasn't come out here yet, so I'm in the dark on this one.
Thanks for the links pbman, another good site is www.tirerack.com
for reference pics. I'll probably go with one of the two stock rims that are being produced for the Z4 Coupe right now, just to keep it current, but the cool thing with modeling is that you can build up a library of wheels/tires, and use them with other models. The tire is the one I modeled for the BMW M3 CSL, and is polys. I used the method of making one strip, duplicating around 50 times in a long row, and then using a bend deformer to wrap it around in a circle. Problem is, these tires are about 1,000,000 polys, so maybe I'll make some nurbs ones to help out with the render process.
Here's another link for some good tips on rendering cars.
I've tried this guys set-up, and it works really nicely. I have the whole weekend to work on the model, so I should have a lot done by Sunday night.