I just could not omit this link I saw on the Lit Motors C-1, a fully-electric, fully-enclosed, self-balancing motorcycle. See Gizmag's complete article on the vehicle with pictures here.
I've been an advocate of 3 wheeled vehicles for years, combining the fun of motorcycles with the comfort of cars, but lamented the fun of leaning to turn as with a motorcycle. This gyroscopic breakthough could satisfy a number motorcyclists! Certainly options could broaden appeal.
Here is a more radical 3 wheeler that would undoubtedly be fun, but lacks the lean.