My estimate is that 50 years from now that encryption will be crackable.
Alternatively there may be holes that can be used--such as a 'boundary scan' of one of the chips yielding the key. I don't have a spare Tesla sitting around to test this theory, however (grin)
Might not be that long. In the early 2000s 256-bit RSA keys were common. These days manufacturers don't care about twenty-year-old cars an owners have factored the keys.
Alternatively there may be holes that can be used--such as a 'boundary scan' of one of the chips yielding the key. I don't have a spare Tesla sitting around to test this theory, however (grin)