Thanks to Cooldude00 and Sfax for the info.
This may be a long shot, does anyone know if there is a going to be a change to X3 spec coming for 2012, and as my X3 is unlikely to be built until Jul/Aug, my build may incorporate some 2012 standards/upgrades? Does this sort of thing happen in the BMW world?
This happened to my current Seat Altea XL, the delivery time slipped, but once car arrived, it had the following years upgrades and standards included no cost.