It definitely looks interesting! It says "80-100 MPG" and considering that the bike weighs a little over one hundred pounds and has a 50cc engine, that definitely sounds reasonable.
What if you aeromod it?!
My main question was how much everything cost, which was not in their FAQ. They listed companies that sold the components, although I wish that they specifically linked to everything.
They also say that with a 150cc engine, you could go 65 MPH!