I dont see much about velomobiles, but here's mine. Now an electric/pedal hybrid. I estimate 1,600mpge without pedaling. Ill confirm once I can find my killawatt meter and track the recharges.
On a side note, anyone have recommendations on a good alternative to a toyota camry? Its a 2010, and we need to fit 2-3 car seats at any given time. So far I see the prius as an option, maybe the ford cmax?