took a test drive of the new bmw 528i xdrive a couple of days ago and there was only one thing that struck me, the car is great by the way, but probably better as a RWD, anyway, if I was to compare my OEM xenons on the 197 with new bulbs fitted in august 2011 to the light that this new BMW emits I would be comparing the sun with... a blown off candle... what might be wrong with my headlights that they give out so little light, or what is the phenomena of the bmw xenons working so good.... the bulbs in my 197 are brand new, I heard that in some cars the reflectors get burned out in time, but that can be fixed quite easily, what else should I be looking for ?? does the ballast or the igniter affect the light emitted by the bulb??? thanks for help!