> there was no requirement that a customer take delivery by October 31, 2009, just that customer agree to buy the car and the dealer enter that as a Priority One Order (i.e., supply a real customer's name) by August 31, 2009.


Correct. And that is the issue.

BMW NA can make whatever rules they want for their promotions, but they should not tighten them up mid-promotion, and if they do, they should clarify the change quickly and clearly.

That's really not too much to ask.