Re: It's the kangaroos mate...
Lets assume that the car manufacturer is held responsible in that case - who would receive the punishment? Would it be the car manufacturer, or one of the multitude of component manufacturers that were used in the construction of the vehicle?
If it is the car manufacturer, would they even receive punishment? Every day we see $trillion software companies churn out products which they know have vulnerabilities. But when the end user is hacked there is no repercussion for the software company - yeah they have their get-out-of-jail T&C's, but there's no motivation for the software company to actually create quality software. It's up to the end user to deal with.
I imagine the same will happen with FSD - the person behind the wheel or registered keeper will receive "justice". Or perhaps simply being in the car makes you culpable.