Over the road truckers have been using a device called an inverter for decades . It plugs into the cigarette lighter & the more expensive ones $400.00 - $500.00 range beat the kW rating of this Prius gadget. Ham radio types homebrew a small one lung engine with a car alternator & battery/inverter to do the same thing for their radio stations . It provides the needed power & it sips gasoline . These options are a hell of a lot cheaper than a $40,000 car. Hell you can go to Sam’s club or Costco & get a contractor grade generator in the 3-4kW range for $400.00 - $500.00 .
“These options are a hell of a lot cheaper than a $40,000 car.”
Except a Prius is around $24k, new.
I’m just saying, if they lower the cost, and provide function, the car is worth considering.