Seems more efficient to just have all cars be hybrids, with a small battery that can cover the bulk of daily driving, and then use the generator for longer trip

Seems more efficient to just have all cars be hybrids, with a small battery that can cover the bulk of daily driving, and then use the generator for longer trips. I'd imagine 90+% of cars are driven < 40 miles per day on most days. Less efficient to lug around a generator all the time? Sure. But right now I'm carrying around 300 mile-range worth of batteries on most of my trips that are 5-10 miles/day. And, users don't need to think or worry about it, engineers don't need to design it, you don't need a winch to install it into your car, etc... e.g. Toyota RAV4-Prime