> Not quickly enough as for 1/4 second or so you are thinking "is it going to brake? Am I supposed to take over? Oh shit it's not doing to stop"
Almost 3 seconds pass between when the vehicle starts to move across, showing a stationary vehicle in front of it, and when the impact occurs. You may well be late, but any breaking is better than no breaking.
Good alert defensive drivers will get twitchy straight away; those with less experience and more so as they rely on auto-pilot in the future, less so... YMMV :-D