Re: So not so much a black box as one step from incar spy
" if the idea was ever to improve safety then they would start with a driving examination that actually tested if you were safe to drive."
I don't think science has reached this point yet. We can't even reliably establish whether a serial killer is mentally ill or whether an airline pilot has the desire to commit mass murder, even after extensive investigation.
Bring on the self driving car for roads and let people do what they like on tracks (subject to affording the third party insurance)