Business Insider:

Tesla Motors CEO Elon Musk unveiled the “D” on Thursday night, which stands for the ultra-powerful “dual-motor” in the new and improved Model S sedan.

The car looks the same from the outside, but it is radically improved. The acceleration is faster, the top speed is higher, and for the first time ever, the efficiency of the car actually increases, despite the increased mass of the motor.

But Musk said “there’s something else” about this new car: Autopilot. It’s not quite a driverless car, but rather cruise control on steroids. The car can read speed-limit signs automatically and can even turn without hands on the wheel.

And you really need to see Autopilot to believe it. Watch this 90-second video, courtesy of SlashGear, and you’ll be convinced you’re looking at the future of automobiles. (Things really get crazy at the 0:38 mark, when the driver engages Autopilot.)