I'm hoping that as EVs become more common, conversion kits become a thing. Both straight-electric and PHEV; I would love to pull the oversized engine from my truck (it's a 4.0 in a Ranger, wtf, it doesn't need that kind of power) and replace it with a diesel-electric motor-battery-generator combo. With a half decent battery, I would be running on electric 95% of the time; for the other 5% (which is camping on rough trails, no I'm not renting a truck for it), there'd be the diesel generator backup