“ there’s no question that advances in battery storage and charging time have been made in leaps and bounds in recent years. ”
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Hardly, leaps and bounds is the definition of exponential improvement. And, battery storage improvement is not that. Some of the early automobiles were battery powered. If you peg improvement back to that time period (100 years ago) improvement has been evolutionary at best. Furthermore, there’s no big battery storage leap or bound on the horizon. Sorry 😞....
Those early vehicles were not very complex, and the batteries would obviously be far smaller to operate them. Heck — they were probably comparable to what you’d have on a moped today.