> f we all drove 160mph road tolls would skyrocket.
You can bring up the autobahn if you like
Okay, I will. 99% of autobahn traffic I have seen drives 200kmph or less. 160 mph is 257.5 kmph - a quarter more than 99% of autobahn traffic.
200 kmph is fast if it's busy, and most cars can't go significantly beyond that. Aiming for 260 is dangerous for folks driving 200, let alone those driving 100 (yes, that is not an uncommon speed - also not in the unrestricted areas).
In other words: bonkers by autobahn standards.