Good to hear that BMW is owning up to the manufacturing defect and offering you a buyback w/o hassle. However, it may be too much of you to demand a loaner for several weeks, if not several months, while awaiting production of new vehicle, esp. if a MY2012 is what you want. IMHO a fair resolution for you would be (1) Buyback of lemon at 100%, (2) Fair deal on the order of either a MY2011 or 2012 of your choice. GL with whatever choice you make on the new car.
2013 X1 28i Sport - AW/Coral Red/Ultimate/Cold/Lighting (Delivered on 12/8/12)
2011 X5 35i Sport Activity - AW/Blk/Aluminum (GONE)
2005 X3 3.0 (GONE)
2006 Subaru Legacy GT (GONE)
2001 Honda Prelude modded (GONE)