On the German autobahns when we were there on our last tour, I regularly drove at about 100-110 mph in the "no limit" areas. I thought it was pretty fast, but I was passed as much as I passed.
Some of the Mercedes overtook me like I was standing still. They had to have been clocking 160-175, it seemed to me.
But the motorcycles -- you'd have thought we were at the Bonneville flats.
Here I am going fast and there's nothing in my rearview mirror, so I pull into the passing lane to go around someone. By the time I'm finished, there's a motorcycle breathing down my neck. And I was easily over 100.
Wrecks in Germany generally aren't pretty.