I've been in Germany for over 2 years now and I have never noticed anything like this. The only thing with headlights that I have noticed is during the day if you see headlights flashing on the autobahn....Move Over. Because that means that something is coming fast in the left lane. Probably some type of S-something Audi or a big E class or bigger benz. You don't see too many BMW's driving 120+ on the autobahn though. Maybe one or two riced out e36's but thats about it. During the night its the same thing only with the left blink and not the high beams. Don't ever and I mean ever pass on the right. You will get some of the meanest, dirtiest, and ugliest looks you have ever seen.