Nice article on Electric Velomobiles
Nice discussion on electric assist for extending range, not electric power to replace human power. This is approaching, in my mind, the Twike, a two-person side-by-side electric assist pedal vehicle.
I think most people would agree, the "Price" of electric assist velomobiles seems very high, but the "Cost" may be low when you factor in the "Cost" of an automobile. Stumbling blocks include single seat, children, pets, cargo and the like.
Now, if one could combine the Google self-drive technology with w velomobile, then you could have your kids "In Tow" in their oown mini velomobiles behind your own, situated in the "Road Train" configuration where one vehicle follows another by computer control where only the lead vehicle is "driving"