Electric motors are vastly simpler devices with far less moving parts. Much less to go wrong, much less to inspect and replace.

These are savings even before you get to talk about energy efficiency.

These savings aren’t realized in the car market because if the motor of a car fails, it is just an inconvenience. All that extra work doesn’t exist.

These savings aren’t theoretical either —- there are smaller scale electric aircraft used for pilot training on the market already. An hour of time in a Cessna costs $150ish/hour, these new electric planes are boasting costs of around $30/hour.

I'm curious, do the training hours on electric planes count towards normal ICE planes? I would assume at they very least they have different operating procedures if not outright handle differently.

That would be somewhat compelling proof, but you seem to be mixing "price offered to the renting flyer" and "cost incurred by the owner".

I wouldn't be shocked if replacing the electric motor costs less than what a turboprop inspection would.

$6/gallon would be way on the high side estimate for mogas, so say $15 total, so we're sure to be generous.

Electric Pipistrel: "The cost of electricity per hour of flight is roughly between $4 and $6," said Krzysztof Będkowski of Pipistrel Alpha Poland."[2]

I can't work out how $4-6/$15 is 1/10. Is is attractive, for sure. Again, I'm not disputing electric is cheaper, but the claim of 1/5th the cost is pretty extraordinary.

[1] https://www.pipistrel-aircraft.com/aircraft/flight-training/...

[2] https://www.businessinsider.com/electric-plane-charges-in-ho...