The Tesla Autopilot system was detailed and demonstrated in a slew of previous videos, though not on the road. Now as it’s about to be made available to regular consumers, journalists have had a chance to try it out and share their thoughts.

But how does it work? Tesla says it uses “12 long-range ultrasonic sensors positioned to sense 16 feet around the car in every direction at all speeds, and a high-precision digitally-controlled electric assist braking system.”

The automaker adds that its system is the only one currently available that mixes for kinds of feedback: camera, radar, ultrasonic and satellite positioning.

It’s these subsystems working together that journos seem struck by, especially in the instances when the car changes lanes on its own. We definitely understand why that would be a slightly disconcerting experience; it’s something you would need time in order to grow to trust.

It will be made available to owners through the version 7.0 software upgrade. Apparently, it’s also “the most significant visual refresh yet of the digital displays,” and it works for any Model S.

Tesla insists that it is by no means a fully automated driving experience, and they say you need to have your hands on the wheel all times, as the driver is still the one responsible for controlling the vehicle.

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