"Ameri-bahns"

I think there should be high-speed (as in maybe 125-150 mph speed limits) highways going up and down each coast like I-95 on the east coast, then across the middle of the country with branches to the northern and southern borders, so that people could travel long distances without having to travel on piddling 65-mph highways, which take forever to go long distances in. In order to be able to drive on these "Ameri-bahns" (I know the plural in German should be -en) drivers would have to pass a very stringent driving test to ensure their ability to control their car at high speeds. If they did not pass they could take a course that would teach them what to do and what not to do for an additional fee. Their car would also have to pass requirements to ensure that it is safe at sustained high speeds, meaning no wandering, shaking, lift because of poor airflow management, etc. Each time someone switches cars or modifies their car (or every five years since most cars gain a lot of mileage in that time), they and their car have to take the test again, since different cars handle very differently, especially at high speeds. Cars that are slow stock are not ruled out from this test, their owner just might want to modify it to make it a little better suited to high speeds.

All of the Ameri-bahns would have entrances and exits every 10-15 miles or so with long merging lanes to allow cars to get up to speed. Ameri-bahn construction would be funded by the normal road tax and by fees collected from the Ameri-bahn license tests.