kvc,
Interesting to hear you "upgraded" the headlights when you replaced the D2S HID lamps - so you went with the Osram Night Breakers then? And is your E53 equipped the same as the models over here, where the HID lamps are low beam only? And it make a difference on the open road at night?
Sorry for al the questions - just trying to get my head around this headlight upgrade thing.