Also basically the way high cost digital lab equipment works. The high-spec and low-spec versions are identical, but the low spec ones have features turned off, using methods from easily by-passable resistors to cryptographic keys stored in a bit of flash
Thinking about the recent leak/hack, the amount of data and control Tesla has of their cars is worrying. And they truly are TESLA's cars. Does Tesla lose access to the car once it has been fully paid off? How do I disconnect it from their network? How do I verify that they no longer have my place of residence after the car is paid off?
Posting this because this article seems to be the most information-dense and non-biased source on this Tesla remote update topic available. Other stories about this are either more fear-mongering or overly Tesla-praising and don't give as much technical detail.