I currently have a Kia Sorento PHEV with a ~32 mile EV range. Looking at my fuel mileage over the past 12 months, I drove roughly 14.5k miles, of which ~9.5k miles were in 100% EV mode, ~2k miles were in partial EV mode (EV propulsion but the ICE on for heat), and the remaining ~3k miles were in hybrid mode.
If the Ramcharger has a heat pump, looking at the exact same driving pattern over the past 12 months, I'd only have about 1000-1500 miles in generator mode. Given the disparity between electricity costs and gas costs here, the Ramcharger would be a slam dunk from a running $$ perspective compared to a Hurricane for my use case.