It's also how cars could be operated - either by overhead or (more likely) inductive pick-up.
The battery concept is kind of dumb and a relic of IC engine thinking. For local urban journeys you could half-size the cars, provide common power, and add automated navigation to optimise density and efficiency.
Getting rid of batteries would hugely lower cost and weight.
Wiring sucks and is faulty. It's already a problem with mass transit-systems today. Wiring the whole city? Good luck not burning down the city because of stupid people doing stupid things. The demand for independent vehicles still remain in the city, at least in the next decades. And batteries are at the moment the only viable technology for this. Hydrogen might become another solution, or maybe one of the magic fuels in development turns out to be real and useful, who knows.
The battery concept is kind of dumb and a relic of IC engine thinking. For local urban journeys you could half-size the cars, provide common power, and add automated navigation to optimise density and efficiency.
Getting rid of batteries would hugely lower cost and weight.
Cross-country is a different problem, of course.