Totally agree; beginner and truly dangerous drivers share a quality: unpredictability. Even the most aggressive, fast drivers can easily be accounted for when d

Totally agree; beginner and truly dangerous drivers share a quality: unpredictability. Even the most aggressive, fast drivers can easily be accounted for when defensive driving. Unpredictable drivers are how collisions happen when speed and weather are not factors. Even the simple automatic emergency braking features in my model 3 result in some dangerously unpredictable behaviour at times. I have them set as off and insensitive as possible and they still do some awful stuff from time to time. I was on a road trip in northern Ontario this week passing a service vehicle moving very slowly along the shoulder on the right. I was doing 105 km/hr in the right lane of a 3 lane road: 2 lanes in my direction and 1 opposing. The 2nd lane switches directions every 5-10 km to serve as a passing zone. Posted speed limit is 80 km/hr, but prevailing speeds on this road are 90-110 and you’d never be ticketed for anything under 110 in this region. There was a truck gaining on me coming up on the left, so I signalled left and partially moved over to give the service vehicle some room, but didn’t fully take the left lane to let the faster truck know I would let them through as they came past. Very common pattern on this type of road and circumstance. The AEB slammed on the brakes as I came level with the service vehicle despite the fact there was plenty of space to complete the pass. I wasn’t expecting my car to slow down let alone apply emergency braking force, so in my surprise I nearly collided with the service vehicle. I have no idea what the other drivers thought, but neither of them could have possibly been predicting or expecting me to slam on the brakes. I was really upset with the car since it took a highly dangerous action in an otherwise perfectly safe and common situation. And that was the automatic stuff that can’t be turned off; I don’t let autopilot drive ever because it is the worst type of driver: unpredictable. The choices it made in the extremely short time I tested it about lane placement, follow distance, defensive driving (and the complete lack thereof), and general behavioural clues provided to other drivers were genuinely terrifying.