I think that, without monopoly legislation and lobbying, a lot more restrictions would exist on who is allowed on most roads. A lot of people can't or won't drive safely and would face more severe restrictions. Many areas, especially residential areas, would ban motorcycles. Pedestrians would also probably be disallowed on many motorways. Libertarians often complain about the government being too strict and having stupid laws, but I think that many people and areas would actually be much stricter than the government is, due to the crony automobile and motorcycle industries wanting to keep retards on the road. I think air travel would be preferred for long distance.
there doesn't seem to be anything here