How will we determine who goes to jail? Elon Musk? The poor programmer who wrote the piece of software that will be identified as having caused the bug? Or maybe someone like you, who “should have checked that the car is 100% safe”, even if everyone knows it is impossible. Most likely, it will be someone at the bottom of the corporate structure.
It seems to me that the correct answer to your question is “no-one should go to jail”
Or more completely: In the absence of malice or extreme negligence there’s nothing criminal to punish at all and money damages should suffice. Given a 100x lower occurrence of accidents this should be insurable for ~1% the cost. The default answer is drivers remain financially responsible for damages (but insurance gets cheaper) and driver can’t be criminally negligent short of modifying/damaging the car in an obviously bad way (e.g. failing to fix a safety critical sensor in a reasonable amount of time that would have prevented the crash. Alternately, bypassing one or more safety features that could have prevented the crash). Car companies would be smart to lobby to keep it that way as letting every car accident become a product liability thing would be much more expensive.
It seems to me that the correct answer to your question is “no-one should go to jail”
Or more completely: In the absence of malice or extreme negligence there’s nothing criminal to punish at all and money damages should suffice. Given a 100x lower occurrence of accidents this should be insurable for ~1% the cost. The default answer is drivers remain financially responsible for damages (but insurance gets cheaper) and driver can’t be criminally negligent short of modifying/damaging the car in an obviously bad way (e.g. failing to fix a safety critical sensor in a reasonable amount of time that would have prevented the crash. Alternately, bypassing one or more safety features that could have prevented the crash). Car companies would be smart to lobby to keep it that way as letting every car accident become a product liability thing would be much more expensive.