It's a badly named and irresponsibly advertised lane assist system. I recently rented an Audi Q5 and a Toyota Corolla that both had vision-based lane assist an

It's a badly named and irresponsibly advertised lane assist system. I recently rented an Audi Q5 and a Toyota Corolla that both had vision-based lane assist and radar distance-keeping systems baked into the cruise control. It's clearly just cruise control, slightly more sophisticated than the hand-operated throttle lock in my dad's restored 1940s antique truck, but just cruise control nonetheless. That's obvious from the engagement mechanism on the steering wheel, from the way it tugs at the power steering when the painted lane lines bend near intersections, from the "Please take control" alert and disengagement when it hasn't felt a sufficiently strong override from your hands on the wheel in 10 seconds... Is that experience anything like the implementation inside a Tesla? If so, I can't imagine why any driver would be confused, if not, that seems pretty negligent on Tesla's behalf.