You could drive your car erratically and cause accidents, and it would be your fault. The fact that Honda or whoever made your car is irrelevant. Clearly you as

You could drive your car erratically and cause accidents, and it would be your fault. The fact that Honda or whoever made your car is irrelevant. Clearly you as the driver are solely responsible for your negligence in this case. On the other hand, if you bought a car that had a “Mad Max” self driving mode that drives erratically and causes accidents, yes, you are still responsible as the driver for putting your car into “Mad Max” mode. But the manufacturer of the car is also responsible for negligence in creating this dangerous mode that need not exist. There is a meaningful distinction between a tool that can be used for illegal purposes and a tool that is created specifically to enable or encourage illegal purposes.