If there is an investigation and if it is found that someone said 'don't bother with those tests just push to market' or 'let's fire the legacy system patching team because they make no money even though the cars are still driving around' and that caused directly or indirectly a car to glitch and run someone over or to get hacked and used for a crime then someone goes to prison and/or the company gets liquidated or something in between that is reasonable to ensure that it is not tempting for another company to do it again.

I am not a lawyer or a legislator and I cannot come with a regulation or law or something that would do this, but I am sure someone can.