They only fail as analogues because you don't realize that a self-driving Tesla is sentient. It says something about the state of junkyards that a self-driving car would choose suicide rather than continue to exist in one.

Found the gtp-3

Many cars are there because they just simply stopped working, they were abandoned, impounded, stolen and recovered (but never claimed back), sold as junk, ...

There's PLENTY of reasons why a car could end up in a junkyard.