A great starting place for a new design might be a late model Formula Ford, with all the inboard springs/shocks and streamlined suspension arms. Fairings to the front wheels wouldn,t be much of a challenge. Then one could chop off the body and frame just behind the driver and convert the rear to some sort of rear single wheel drive. It might even be possible to add a tandem seat and a canopy.
An engine/drive train doesn't immediately come to mind, but the whole thing might work with a good 125cc motorcycle setup.
I believe that Formula Fords are required to have mild steel tube frames, so fabrication wouldn't be all that difficult.
The advantages of a "3-Wheeler" is that one can then register it as a motorcycle - in some states at least. Is that where the screen name came from
