They look very similar to OZ Supertourismos, if they aren't actually those wheels, which you can't normally get in the US, or in the 4x108 bolt pattern either. Oddly enough, I know two people that have had them custom made, and shipped to the US. One of those sets happens to be for sale by a friend of mine. Toss me a PM and I can look into getting them for you.
Another similar looking wheel is the euro ST200 wheel.