I have seen both. The real difference is how shiney they are. Frankly, I do not think they are worth what Saturn is charging for them. If you want them now, there on hold anyway. It looks like they don't have enough of them to meet demand.
If you want flashy shiney wheels I suggest buying them from a wheel shop after you get your sky. That way you won't have to wait and can buy something that looks unique and meets your taste.