Uh...no.
In fact, that's kind of why (well, one of why) their predictions are so useless for a year or two from now.
Because this year the credit is only half as much.
So a 2018 buyer spends say $57.5k on a Model 3....net 50k thanks to the credit.
A 2019 buyer looking at the same car would be paying a couple grand more (new)... someone buying after July will be paying almost 2k more than that... and someone buying in 2020 almost 2k more yet again (unless Tesla does further price cutting, which it sounds like they can't afford to do).
As the tax credit declines, a new car effectively keeps going up in price every 6 months by a couple thousand bucks.
that's the
opposite of depreciation.
But that's not a long term distortion, and will fade as the full credit gets further away in time. Right now though it's a significant effect.
No, it explicitly isn't. I even quoted you where they mention their models are primarily based on transaction data. That is- the resale price of the car.
The model don't know, or care, about
why the price is high or low.
It just knows "for the length of data given, car X retains Y percent of its original price...while car A only retained B percent of its original price"
This can get you pretty decent, with years or decades of data for some car makers and models, at knowing that say (just using a hypothetical) a BMW 3 series will lose about 50% of its value after 3 years, but a Lexus IS will only lose 35% of its value.
This type of model is pretty useless though when you only have 1 year of data, and it's heavily skewed by both scarcity and the price distorting impact of the tax credit. I imagine they'd have to have been using S/X data to help a little bit (since any decent model will have a "brand" factor included) but again the typical S/X buyer is very different from the typical 3 buyer so that's probably not going to give you ideal results either (and even then they've only got a tiny fraction as much data as on established brands)
And it gets even weirder when you consider Tesla already discontinued 2 versions of the car in the first year (the RWD LR and the P3D-) so it's unclear if that will actually help or hurt future resale (some have suggested the rare models will retain/gain value because of continued scarcity- others suggest the opposite that they'll need to be firesaled when sold used because they're oddball abandoned configs)
I mean, not as silly as you defending them while clearly not understanding what they base their guesses on....
Again, no.
If I bought one last month for $57,500... my net cost was 50k.
You buying the same car today would need to pay $55,500 (and you'd get 3750 back NEXT year for a net of $51,750)
Now, if the tax credit didn't exist at all... your new car would've been the same, or cheaper, than mine... so I'd have to drop my asking for a used car accordingly.
But since it does exist I can drop my price
less than I would have otherwise.
Hell there was a thread
yesterday right here with asking prices for used cars showing this effect happening... a very low mile AWD was only a tiny bit under what a new one would cost (but the buyer would also save almost 10% of the price by avoiding sales tax so was seriously considering it).
Mainly they estimate car prices based on
actual car prices from auctions, used cars sales, etc.
This works great when they've got undistorted, long-term data, for makes and models going back many years.
None of that is true of the data on the Model 3 right now.
If you wanna pretend that's not the case... or that they have some special magic wizards who not only understand all the confunding factors making the data their models use problematic, but also magically can predict the future about how that impacts prices years from now when there's essentially no data from which to draw you're free to do so.
But there's a reason so many folks are suggesting taking their #s seriously is not such a great idea.
Especially since this is the first EV company to exceed the tax credit on sales... and the first EV company to have a mass appeal vehicle selling in these numbers... and the first EV company to have a mass produced car with artifical scarcity for much of its first year of mass production.... AND the first EV company that isn't using traditional model years while you're at it.... (so making blanket price guesses about "X model year" of a car isn't going to work out so well.... take a look at AP1 vs AP2 cars for example- that's not a model year cutoff- but it significantly impacts value....)
But sure... they can reliably tell you how much a 3 year old mustang will sell for at auction, so I guess they've got this all figured out