Waymo's self-driving cars are performing way better

Waymo, the self-driving car company from Google's parent company Alphabet, showed a large improvement in its vehicle testing in 2016, according to a new report published Wednesday by the California DMV.

Waymo reported that it had 0.2 disengagements per 1,000 miles driven 2015. That's down from 0.8 disengagements per 1,000 miles in 2015.

In the self-driving car world, a "disengagement" is when a human tester has to take over from the automated driving system.

Another promising stat in the report: Waymo's cars drove more miles in 2016 (635,868) versus 2015 (424,331).

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