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1. How much better are xenons than ordinary headlights? I recognize they may improve night vision somewhat - perhaps even substantially. Do you think that the improvement is significant in terms of safety, or that it doesn't matter that much - i.e., that the standard headlights provide enough illumination and the benefits of xenons, even if substantial in absolute terms, don't make the car that much safer?
2. Does anyone have any information on whether xenons are apt to blind on-coming traffic? I know the BMW xenons are supposed to remain pointed more or less at the road; I wonder if they really do this or if they pose essentially the same hazards to on-coming traffic as other manufacturers' xenons.
Thank you in advance for your observations.