I don't think you'll find a reliable one under 18k . The only way to get one that cheap is if the battery needs replacing, and those batteries go for $20k plus. Twenty grand buys a lot of fuel.

Posted by: @yev1699

max 25 miles per day

that's about 260 gal of fuel per year or about $980.

For $18k you can easily get a nice used prius or other hybrid.

Is saving less than $1k in fuel really worth paying so much more for an EV??

Will it EVER make up that difference?

You might try your luck with a Chevy Bolt EUV, but that's about it. They don't even make them anymore, because they were so badly made. They had recalls for the cars catching on fire while charging and they burned people's garages down. I highly don't recommend owning one. Here's one that meets our needs as far as price, but it has 60k miles on it. 2023 Chevrolet Bolt EUV LT FWD - $17,815 - CarGurus

You might try a used Tesla? The bottom falls out from electric cars once they get to be a used car, so you might be able to buy a minimally equipped one for fairly cheap, with lower miles. I don't like Teslas, I think they're awkwardly designed as far as ergonomics. Newer ones don't have conventional dashboard-mounted gauges, all of that is featured on a screen, which takes your eyes off the road, I think. They did it to be different, and now all of the other manufacturers think it's cool to plaster iPad-sized touchscreens on their cars' dashboards, which I think is incredibly tacky. I'd rather keep the $18k and spend it on something that's a gas saver, like a Corolla or Camry.