If we, Western Civilization, had started out with electric cars, and a century later someone came along with the idea of exploding little dollops of gasoline mixed with air to propel them, that person would be thought insane.
Depending on price, the cost of energy to propel an electric car a given distance can be about 5% of the cost to propel a gas-explosion style car. The electricity to power the electric car can be produced in any number of ways, some icky some cleaner, but much more efficiently. Some of that energy can be generated where the car is parked, at home or work, under a Photoage, a structure with photo cells that serves as a garage. Since most cars just sit there for much of the day, this can be a significant amount. Meanwhile, the car’s batteries can be part of the smart grid, the top 15% or so being used by the grid to store/use electricity keeping supply and demand closer.
I used to think the inefficiency of making all the volts in big giant plants and sending it out over wires obviated all of this but experts tell me this is not true. Also, as the grid becomes more and more localized, and it becomes more and more normal to fit homes or other buildings with solar and use batteries, etc., the source becomes closer to supply. But really, it may be the difference between generating a magnetic field from available electric potential vs. causing a series of explosions inside a big heavy metal thing that matters most.