For the price differential between the PiP and the Volt,... even if the PiP got 40 miles of range, not a quarter of that, it'd be the worst buy in the car world. The difference in experience/luxury/quality of the car from Prius to Volt is a fair shot less than Toyota to BMW. Its not even a comparable drive, I drove a Prius Gen 3 around all day today, borrowed from a friend. Still noisy, still absolutely awful driving dynamics (almost as if they wanted it to be bad), still rattles over really junky streets. Nice interior design, but low grade execution, and just isn't a great car. Great mileage, bad car. It just breaks even. The Volt knocks it out of the park.
50-55+ miles spring/summer (no climate control), 45-50 summer (AC on Eco), ~30 winter (heater running)
The electric car will win one day, not because of global warming or enviro-anything, but because it is simply a superior driving and ownership experience. You read it here first.