I received confirmation from my dealership's Sales Manager this morning:
"BMW NA as of November 9th came with mid -year production change which is effective January 3, 2013 and soft close doors has become a stand alone option."
They gave me the option of passing on my GC, which is now on a boat, and re-ordering for a January/February production slot. While I'd like soft-close doors, I'm going to stick with my current order and just bitch about it for the next 24 months. Ha.
2016 BMW X6 ///M | Donington Grey / Black Full Merino
2017 BMW X5 50i M-Sport | Space Gray / Mocha Nappa
RETIRED: '16 750i, '15 X4 35i, '14 328xiT, '14 X6M, '14 X6 35i, '13 650xiGC, '12 650xi, '11 535xi, '11 X6 50i, '09 750i, '09 328xiT, '08 650i, '07 750i, '07 X5 4.8i, '06 650i, '05 745i, '05 325xiT, '03 745i, '02 745i, '01 325Cic, '01 X5 4.4i, and on...