It depends on the Autobahn. I strongly felt what you described on pretty much any Autobahn around cologne where there always was a lot traffic and many on and o

It depends on the Autobahn. I strongly felt what you described on pretty much any Autobahn around cologne where there always was a lot traffic and many on and off ramps. However, my ride usually would take me from there onto the 44(?) towards Paderborn and there was no speed limit and it was a joy even in an old Golf 2. There were very few on and off ramps and moderate traffic. My car would be able to speed up to ~220km/h over the course of several minutes, but it was so worth it.