this is my time
to the geman autobahn: the adviced speed limit is 130 kph (81 mph). there is no state wide restriction, by setup the autobahn is free. however, today´s traffic density urged the state to restrict many of the roads to 120 kph (75 mph). on country roads it is permitted to 100 kph (63 mph). in the city it usually varies from 30 - 70 kph (18 - 43 mph).
to the german license: it really takes about a year to get it. you have to take many hours of theoretical classes to learn rules and behaviour. same is with driving school behind the wheel. you have at least to do some 20+ hours behind the wheel to be permitted for the test. then, when you got it, there is a five years testphase where you are not allowed to get ticketed.
in the US i believe there already are some interstates that are free. in montana if i am not mistaken.
germans see the autobahn, especially as it is the only country left where you can drive as fast as you want as a piece of culture. and it is very rare that people really misuse it. sure, people drive fast. my average speed while traveling is around 125 mph. not the overall average, but when the road is clear that´s where i use to travel. people are aware of the danger and behave like it. and in the end, you can´t sue anyone if you are too fast. it is you who pressed the pedal, not the country.