The problem that I have with the enclosed motorcycles is the weather. You still need to be able to put you foot down at a stop and that means an opening for cold air and snow and rain. Then there is the traction issue with snow, slush nd ice. Keeping the thing from spinning round and round about a vertical axis is one thing, add the option of spinning about a horizontal axis raises the pucker factor to a whole new level.
FuelVapor Technologies - fuel efficient vehicle automobile high mileage
This car seems to offer most of what I would want although I wouldn't have went with such a high top end. I wish they would put a "normal" engine in it and bring it to market and work out the production bugs on the chassis side while they continue to develop their fuel vapor technology and engine control systems.