Tangential, but one of the concerns I have about these 'smart' cars is they have an expiration deadline.
There's an exceedingly common type of failure I have seen myself in industrial electronics and (has happened with Tesla at least once), that some module keeps a log of some kind in a nonvolatile flash, and this flash has a limited lifecycle, which the equipment reaches at some years into its life (or earlier, if the flash came from a bad batch, or more logging happens than planned).
At this point the board usually gets bricked and replacement is very hard due to cryptographic handshakes between components.
There's an exceedingly common type of failure I have seen myself in industrial electronics and (has happened with Tesla at least once), that some module keeps a log of some kind in a nonvolatile flash, and this flash has a limited lifecycle, which the equipment reaches at some years into its life (or earlier, if the flash came from a bad batch, or more logging happens than planned).
At this point the board usually gets bricked and replacement is very hard due to cryptographic handshakes between components.