> That used to be true. With self-driving technology I'm not sure that's true anymore. Tesla has even offered hardware updates to improve self-driving of older models. I haven't heard of anyone else doing that yet.

Nobody has self-driving tech in production. What they do have is a combo of adaptive cruise control, lane keeping assist, lane changing assist and park assist.

Full self-driving tech is still at the basic research stage, just like cold fusion reactors. It could be out in 5 years, it could be out in 40. Nobody's going to "OTA" that.