A great demonstration of how the Europeans are not necessarily worth emulating. The EU has proposed ISA (intelligent speed adaptation) based on GPS or sign reading cameras, which would first warn a driver and then automatically slow a vehicle down, if they were exceeding local speed limits.
The scheme would work either using satellites, which would communicate limits to cars automatically, or using cameras to read road signs. Drivers can be given a warning of the speed limit, or their speed could be controlled automatically under the new measures.
Something like this would simply be laughed out of Congress in the States. But in Europe, the EU central regulatory agencies have a lot of power, and top-down regulation is a way of life.