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WATCH: Hands-free driving is coming to GMC's pickups — even when towing

It's not self-driving, but it's about as close as you can get.

This is me driving a prototype GMC Sierra pickup truck with Super Cruise. We’re on GM’s test track going 70 MPH, but my hands aren’t on the wheel.

To pull this off, the car matches its view of the world with a previous lidar-scan to determine its current location. Then it maintains speed and lane position without any input from the driver.