Did you get those numbers from the dealer or from the
lease offer page of the BMW website? Looks like they're based on a selling price of MSRP, according to the BMW website. Are you dealing with someone at the dealership yet? If so, what's their position? Can they tell you the specifics of the lease? Fax you a recap?
I'd suggest finding the best person to deal with, then have them locate and trade for the car. If you can do your research and get the local dealer to beat or come close to the deal, that's better. You'll probably be somewhat preferred in the service department if you got the car at the same place.