AI DRIVR made an interesting analysis about the v12 on YouTube. Apparently it's completely different from the previous versions and instead of understanding traffic rules it learns from a videos of people driving which means it does things like doesn't fully stop at stop signs and drives over the speedlimit - like people do too.
It's interesting because by strictly following traffic rules you might infact be a danger to others but then you're also breaking the law. Good example of a situation where the "right" thing to do might not be the most intuitive one though in this case it's still up for a debate.