So I took my 1M in to the dealer today and completely wasted 2 hours of my life
Firstly my car was registeted in October 2011 and the revised security for the windows (stop then being opened from the door keyhole) was a waste of time as my car didn't have this weakness.
Secondly don't get too excited about any other additional OBD / Key programming security as contrary to what I had been told this wasn't on offer either! In BMWs mind the additional security solely consists of the window modification preventing them from being opened and it has no relevance to disabling the key programming option from the OBD port....
So all in all a complete waste of time and it appears my own OBD security measures taken are far superior to those offered by BMW!
Good luck with everyone else planning to waste their time!
AW 2011 1M, Gloss black GTS alloys, Milltek full non-res system, K&N Sports Air Filter, Eibach ProKit springs, Michelin PSS Tyres (Front 255, Rear 275), BMW Performance grills, BMW Performance pedals, IND Gloss black side repeaters, Carbon Fibre Rear Spoiler, ABP OBD isolation, LUX Angel Eye upgrade, Venture Shield kit, Lightweight front splitter, BENTLEY Alcantara steering wheel (Orange marker & stitching)...