Can’t take an EV on a road trip. It would make it 3 times as long. And there are no convertible EVs. So I’ll think I’ll keep my oil burner which does about 12mpg, top down while I blast AC on my feet.
Or skip battery, and use electricity from generator. It is called diesel-electric and is reliable way to produce EV vehicles. Well tested on cars, trains, tanks, boats even submarines...