If you are in the US and considering purchasing a used Electric Vehicle (or plug in hybrid electric vehicle), the used EV tax credit can take $4k off the purchase price, at point of sale, including through private party sales.
The law (expiring now or whatever big beautiful stuff is happening see [1]) had been written so only purchases through a dealership qualified for the used EV tax credit, but you can make it work for a private sale. See for example Key Savvy's service which will allows a private party sale to qualify for used EV tax credit:
https://www.keysavvy.com/pay-private-seller/ev I've also read discussions about people negotiating with local dealerships to act as middle man on a private party sale (for some fee, you pay the dealership a couple hundred dollars to do the documentation, but get $4000 back from government.. gotta love the middleman fee). That involves talking to people, and walking into a dealership, I'd prefer to go with Key Savvy or similar, but some people may prefer that option, so you have at least two options.
The used EV tax credit is going away September 30th or so (do all your own due diligence and check dates and stuff). If you are considering an impulse purchase, turning a $15k purchase into an $11k purchase (or however the purchase and math works out) isn't too bad a deal at all.
Myself I went with an old high milage Model S at some point around my birthday this year or last (I'm old as fuck, don't need to remember stuff exactly do I?) and been very happy with it myself. I'm a sedan person, like the aesthetics (like others see [2] and [3]), and while it's not as much fun as a bicycle, it's not bad as far as cars go. I have no interest in little explosions powering my automobiles nowadays (as much fun as little explosions can be, will leave it as historic automobile technology for now, but man I miss my old CRX).
Edited to add, I went with the ridiculous purchase option since I'm old and retired and all that, and the curves on the Model S made me smile. The reasonable choice is definitely used Chevy Bolt, etc
At the time I made my purchase, you could have got used Chevy Bolt for same price, much less miles (less appealing curves), with eight year drive train warranty (thank you GM battery fire buyback/replacement). Not sure if still the case, but was case at time I made purchase. If it's still the case, go for the $11k car with new battery and/or 8 year warranty. I just choose to be ridiculous in my old age.
[1]
https://www.reuters.com/sustainability/us-electric-vehicle-tax-breaks-will-expire-sept-30-2025-07-03/[2]
https://www.motortrend.com/features/2013-tesla-model-s-beats-chevy-toyota-cadillac-ultimate-car-of-the-year[3]
https://www.businessinsider.com/why-buying-used-tesla-model-s-as-my-next-car-2020-7
