No reason in principle, but for practical reason that probably will never become common. Seems more likely we'll get "hybrid EVs" with batteries and capacitors

No reason in principle, but for practical reason that probably will never become common. Seems more likely we'll get "hybrid EVs" with batteries and capacitors working together, capacitors acting as buffers for batteries. Until the technologies converge into a single thing that does both, but I'm guessing that'll take decades rather than years. (Then the only question that remains will be, will they be called batacitors or capatteries? :-)