NFA Vehicles Type 6 Velomobile:
You mean like a Velomobile? I built one of those too.
Or maybe more like the "Velotop":
http://www.velotop.com/
We had better remember the K.I.S.S. Rule. I made the mistake of building the "Type 6" Velomobile too narrow, with hard sides, only 20 inches wide, so the handlebars had to be cut short.
The clear plastic was of the kind approved for replacement use in Jeep Vehicles and Convertible rear windows. (Twelve Mil Vinyl)
But I had to scrap that vehicle, because the plywood bulkheads inside had rotted out, the roll bars were fake because they weren't welded to the frame of the bike, and like I said, it was too narrow. You need room for your (riders) elbows to bulge out.
But sure, feel free to experiment, there are some great ideas out there.
There is one other company that makes something similar to the NFA Vehicles Type 6, it is from Switzerland,it has an engine, and it is called an Ecomobile:
http://www.peraves.ch/
And my other mistake, looking back on it, was trying to create "Interchangable Parts", where the front end of the Type 6 was used as a front fairing on the Type 5. I should have cast the Type 6 Fairing (Body) in one piece, instead of rivetting it together in sections. Maybe I'll build another someday, but I might try and order one of those Velotops online first, to see how it works.
The Type 6 was made of Kevlar, so it was very expensive.