You don't need to go to self-driving cars with LIDAR to find safety-critical parts. There's plenty of steering, suspension, braking and restraint systems that

You don't need to go to self-driving cars with LIDAR to find safety-critical parts. There's plenty of steering, suspension, braking and restraint systems that are safety-critical already. This issue is already solved for cars. If you make major modifications to a car, or even small modifications to some parts, it's already not considered roadworthy unless you get a qualified engineer to sign it off. Note that the qualified engineer does not need to be associated with the original vendor.