Well, I think the issue is, no reasonable person would consider "Tesla upgraded something under warranty" as a defect. Here's another example: many car brands

Well, I think the issue is, no reasonable person would consider "Tesla upgraded something under warranty" as a defect. Here's another example: many car brands sell larger tires as a feature of upper trim models. Hypothetically, I take my car to the dealer to get new 17" wheels, but they're out; so they do the insane thing of saying "but we've got 19" wheels here, we'll throw those on free of charge". Four years later the next owner gets a knock on their door: "we got a crew out in the driveway swapping your wheels, you didn't pay for those". This sounds insane, but I think it only sounds insane because we're talking about software vs hardware. Since its invention, humanity has had a weird stance with software; we tolerate a lot more shit, and that toleration has allowed companies to basically get away with highway robbery. Whether that's Amazon selling eBooks then revoking them years later, game companies releasing unfinished games then promising patches months later, or Tesla issuing OTA updates, it all factors down to a really similar issue in that: software has enabled companies project greed in previously impossible ways. Maybe the previous owner misrepresented the car; or maybe they didn't, because what reasonable person would have guessed that Tesla would do this? The statement "you didn't pay for those wheels" isn't even accurate; the new buyer probably did pay for them; maybe not in this case, but hypothetically: if it looks like a P90 and quacks like a P90, its a P90, and that's the resale value. If it looks like its got 19" wheels, and it quacks like its got 19" wheels, its priced like its got 19" wheels. The buyer just didn't pay the right person.