that some japanses cars dont have auto level and they are legal, but BMW's without auto level are illegal. That's why Bekkers sells their oem kits with a note that says intended for off road use or something. Also I am pretty sure that anything over 4300k is illegal.
The BMW Xenons use a projector lens assembly that focuses the light in a specific area- and this must be below the eyes of on-coming drivers- This is why you must have levelling- if you have a couple of dead bodies in your trunk- your headlights will blind on-coming motorists-
The Japenese cars that have Xenon lights do not use projector assemblies- the lights are using a normal reflector / bulb-cover arrangement- Their light output is less that the projection housings, and less focused.
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