[0] http://www.eliomotors.com/wp-content/uploads/2014/02/helmetl...
This plus the fact that 45+ states have already passed helmet exemptions for the Ello and other three-wheeled vehicles with non-removable roofs/windshields.
http://www.technologytell.com/in-car-tech/5760/elio-motors-m...
I suspect if they get a finished product off the line the number of states that classify certain 3-wheelers as cars will go up quickly.
They said that about Elon Musk, on both Tesla and SpaceX. What do you want to bet if crowdfunding had been a valid option back then that he would have used it?
I don't think anyone on HN will disagree that transportation will look vastly different in thirty years time in ways we can't clearly project. Even Ford is now looking into manufacturing both motorcycles and bikes.