I can see the argument for indicting the driver. He could be seen as negligent for choosing to unleash this car, known to be buggy, on a public street, leading to two deaths. His counterargument is obvious too, that the manufacturer assured him of its safety, and its therefore the manufacturer's fault.
Which then begs the question - if it is Tesla's fault, does that mean manslaughter charges will be brought against a corporation? What would that even mean?