On the Autobahn, if one is proceeding in the #1 lane at say 75 mph, the first thing they would see is a Mercedes or Porsche whatever, coming up behind them and about 120mph plus, with many driving lights and fog lights flashing, while standing on their horns. (Yes more then one horn and more than two headlights.) They do no tolerate those that attempt to meter the flow of traffic on the autobahn and they will literally tail gate you while flashing their lights and standing on their horns at 80mph.
I know, Germanys autobahns is where I learned how to drive and developed my first driving skills.
They don't have a lot of fatalities but when they do, they resemble aircraft crashes/accidents. That being said, most Europeans were very good drivers, that pay attention.
I have been on the Bahn between Frankfurt and Bern/Basel in an MB 560SEC at about 140 or so in the rain and had a Renault Twin-Turbo rally car come up behind me with lights flashing and blow by like I was standing still....and later a 959 blew by as well....late 80s.
Those were the days.
I got a 928S4 (Ruf) up to about 175-180 with my then preggers wife asleep beside me on the Bahn tween Munich and Stuttgart very early one morning....felt like she was gonna go airborne.
Driving in Germany is a blast.
Driving in Nashville with Nashville drivers and rock walls everywhere is more dangerous.
Whenever the issue of speed limits arises, someone will always bring up the Autobahnen. It's not really a valid argument of several reasons.
One is that the United States is a much, much larger country. It isn't economically feasible to expect that the huge swaths of interstates the US must maintain could be kept in the proper repair for high speed driving. German "interstate" highways are VERY carefully maintained to a high level and were built to exacting standards and thick roadbed to begin with. There may be a few sections of the original 1930's still in use around Berlin, not sure on that.
Second, all cars and trucks must take and pass a yearly safety inspection that is, as one might imagine, VERY thorough and meticulous. Europeans have a reputation for precision and thoroughness in this sort of thing. Equipment wise, I found the brakes and tires to be superior - coming to a "panic stop" at 150 mph will make one appreciate the safety standards they enforce.
Finally, prospective motorists must take and pass a rigorous and expensive drivers training program Fahrschule -($1500 to $2000) which includes city driving, autobahn, night driving, etc. There is a decided responsibility placed on motorists to not impede the flow of traffic as well as not doing anything unsafe. Drivers are fined for running out of fuel - stalled cars on the sides of roadways are a definite hazard.
Basically our roads, cars, and drivers are in no shape at all for high speed driving.