Hopefully, people will be too busy surfing the web to notice that their cars are politely improving traffic flow.
I actually did that while traveling to work this very morning :) No need to dive into the future for that. It's called public transportation.
I also drive from Canada to Florida multiple times a year. 24 hours wasted but it's better than flying, more freedom to stop and relax, better food and less stress overall and more space to carry stuff. With these cars I'd be in heaven (not literally).