content: All your negatives are based on one silly hit-piece from a site that's become mostly click bait. The individual who had his car "remotely downgraded" was actively hacking his firmware. The firmware is delivered wirelessly and stored on rewritable technology. What this means is that corruption, either during transit or post-install, is a very real potential. There is absolutely going to be an integrity check and software redundancies in place. I think the most likely explanation here is super simple. His hacking the firmware likely screwed with a redundancy check which initiated a reinstall to the last verified version. In any case here is the twitter of the man who claimed the "wireless downgrade." He has since been actively modifying the software and hardware of his Teslas with no issue. Far from "giving Tesla direct control of all features and driving mechanisms" he's done things like successfully retrofit autopilot hardware onto a Model S Tesla that did not have it.