It makes a difference if there is an unlimited section, I start to overtake someone with my weak base engine VW Golf and accelerate to 130 to complete my pass. And then a BMW/Audi/Mercedes approaches at 200+, flashing his high beams barely two car lengths behind me. I'm by no means an insecure driver, it just drives me mad. Some people think that just because an unlimited section of the Autobahn has started, everybody needs to move out of their way immediately or take part in a top speed chase with them. The sense of entitlement is strong out there.