Since I lived in Germany the total length of autobahns has tripled.
Back then almost everywhere was not speed restricted, however apparently much of the roadway is now speed restricted.
At the time I concluded the roads, cars and drivers were superior to American standards then. 1970.
It stands to reason a German driver would be better skilled if he was routinely driving 100 mph or more, in a vehicle capable of doing that safely, on roads designed for that.
When I returned to the states I immediately decided our highways were not designed for higher speeds, with curves and banking shortfalls.
BTW we did some sections of the Italian autostrada, and they really went all out for highways designed to go fast.
“Italian autostrada, and they really went all out for highways designed to go fast.”
They have to have some place for the bulls and prancing stallions to play.
I don't know anything about the Italian autostrada but if there are any Italians driving on it then it is unsafe at any speed.