Okey then. Let me try to tell you what is official about the Autobahn in Germany...
We have a lengh of approx 12.000 Km of Autobahn which should be about 7.500 miles. I have read that you in the States have about 47.000 miles of High Way.
On the German Autobahn there is no Speed limit for cars and motorcycles.
Only trucks and busses are not alound to go faster then about 50 or 63 miles an hour.
There are several speed limits on our Autobahn, mainly around cities and on curvy parts.
These speed limits cover only about 1/3 of the complete Autobahn system which are approx 2.500 miles.
I have to admit, that we have a lot of traffic especially during workdays and working hours.
But there are enough parts with very low traffic and you can ride what ever you want....
Sunday morning is a perfect time to go for a ride. Just before the people start for their sunday sight seeing trip.....
The maximum I have been riding on my Speedy was something like 140 miles/hour - on the Autobahn.
Although I have to admit, that isn`t to much fun and that I haven`t done this for more than 1 or two miles.
The wind and everything is simply crazy....
I do definetaly prefer the curves in the mountains riding a bike.....
Riding a nice car on the autobahn without a speed limit is alot more fun and alot more "relaxing" to me.
Is this answer enough??
P.S. Sorry if there are to many writing and grammatic mistakes in this post.... But English is not my mother language. I also hope that I have not made any mistake in calculating the kilometers into miles.....