Interesting. That change was supposed to be introduced in Week 40 (4th-10th Oct) along with the commbox controller and USB system changes. Perhaps they've done it for the LCI (facelift) E70 and that particular change will come on the LCI X6 next year. Probably a HID system then. Tnx anyway.
EDIT Found out it is some kind of LED based system according to RealOEM and as you say is not retrofittable. Interestingly the parts system also says my X6 40d has no headlights

Last time I saw the car it had two, one each side
