I have the optional extra Xenon Plus headlights in my car and I don't think they are very good at all! I had Xenon headlights with my 2007 S3 and they were fantastic! They pretty much turned night into day. They had an ice blue tint to their light as opposed to the normal white light with my A4. Does anybody else not rate these lights? I realise with the Xenon it might not be as easy as uprating the bulbs.