I’ve used a Prius as a heated camper, sleeping in the back. Doesn’t use much gas and it’s very comfortable. The motor comes on sporadically. Ever since, I’ve

I’ve used a Prius as a heated camper, sleeping in the back. Doesn’t use much gas and it’s very comfortable. The motor comes on sporadically. Ever since, I’ve wished for a hybrid RV that was basically a gas powered generator putting power into batteries, running the drive train when you need to move and powering everything else (heat, ac, computer, etc.) when you’re parked. For whatever reason, no such vehicle seems to exist.