Maybe it&#x27;s early days yet, but I&#x27;m not comfortable with the approach taken by Tesla. Either give the car full control, or else the operator must be in full control with the technology playing an assistive role. I cannot be expected to sit doing nothing behind the wheel for hours and then suddenly be called upon to take over the driving in a split second.<p>Obviously for the former option Tesla is not there quite yet (and that is an understatement), but I wonder if better sensor tech will not help here. Sensor tech is reasonably robust; thus, for example, even if the autopilot is no longer able to properly make out the markings on the road, a sensor override should be able to determine (using radar?) the locations of nearby vehicles within say a 100 meter radius, thus ensuring collisions are avoided, and give the human driver several second or even a minute to take over.<p>No wonder this [1] effort from Volvo focuses on, among other this, Radar tech. I think that is a core tech for the success of self-driving cars<p>[1] <a href="http:&#x2F;&#x2F;spectrum.ieee.org&#x2F;cars-that-think&#x2F;transportation&#x2F;self-driving&#x2F;volvos-selfdriving-program-will-have-redundancy-for-everything" rel="nofollow">http:&#x2F;&#x2F;spectrum.ieee.org&#x2F;cars-that-think&#x2F;transportation&#x2F;self...</a>