Americans when they visit Germany the first time

I rented a Fiesta when I was there for work and I think I hit about 110mph, but I live in Detroit and our highways are nicknamed the Michigan Autobahn so 90+ is not unusual. What was unusual and required some attention were the cars coming up behind you at over 150mph. If you chose to pass you had to look a lot further back to see if anyone was coming or you'd cut some Porsche/Merc/Beemer off.
I had a lot more fun on the twisting back roads in Germany and Belgium