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> I would personally never buy one of the Google (or any other) self-driving models with no controls.

Google cars have the Big Red Button, which shuts off self-driving system and brings the car to a stop.

What more controls do you need?

When are you barreling down a highway at 65 miles per hour, turning off the car might not be the best solution.

When you are barreling down a highway at 65 miles per hour and are not paying attention (and you wouldn't, because the car drives itself just fine), giving you controls is much more dangerous (for you and others around you) then not.

Urmson talks about it here: https://youtu.be/Uj-rK8V-rik?t=14m3s

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