Check it out, got these in the mail today, delivered from Portugal! Originally found them on eBay, these 959 wheels are about $5000 each retail if you buy them from Porsche. Got them for about 20% of that. Used ones are just not to be found. They are made of magnesium, and are super-light for the size of the wheel. They have hollow spokes (I guess they used a lost-foam or lost-wax method of casting) for light weight, and also air distribution (I think). Manufactured by Speedline, the guys who made the Ferrari F40 wheels too. I bought these as spares, just in case something happens to one of the wheels. It's not as if you can slap a Fuchs alloy on this car - the car only takes one wheel, and only takes one tire that fits that one wheel. Now I have to start looking for a pair of fronts...
-Wayne