When I bought mine, one of the considerations was the car's resale value over time. 15% was what everything else lost driving it off the lot - in Dec 2021, that's what a Y lost over three years. (Everything else = EV/PHEVs luxury bigger-then-sedans).

So... sure? If you're owning a Tesla as a form of value store, you might want to sell? If you're owning a Tesla as a car, then these don't look like the right numbers - you'd need the spread for buy->sale price, probably for new and used (since these used prices look about the same as new prices).

Edit:

Also, on second look, the tweet links to a Car Guru chart of a bunch of gas cars. The one I'd look at is the Rav4 Prime, IMHO one of the alternatives to the Y (sure was for me), which while still doing better than the Y on these charts, not by nearly as much as the originally selected cars.

Model Y - https://www.cargurus.com/Cars/price-trends/Tesla-Model-Y-d30... RAv4 Prime - https://www.cargurus.com/Cars/price-trends/Toyota-RAV4-Prime...

The drops for 2021 models are almost identical, although I'd probably look at the 2022 numbers since the Rav4s in 2021 were heavily marked up by dealers ($10k+) due to rarity that year.

While I can't sell my Y for more than I paid for it, I can sell it for more than than the outstanding balance on the loan (by... 25%?) sooo