Possibly a commuter vehicle, but useless for anybody with kids. IIRC, its mileage is about comparable to regular-sized diesel-powered vehicles.
Useless for big/tall people and is also a death trap.
I think I remember reading they get 40 mpg while a 4 seat Honda econobox gets 36. It’s not dramatically better than what’s already out there but it will sell to those who want to make a statement ala the Pious.
Around 50 mpg gas, 70 mpg for the diesel version.