Google's newest self-driving car is designed to look friendly, and make sure people inside know they are not driving.  The car Google introduced last week has no brakes, no steering wheel and no gas pedal.  The only controls are buttons to "go" and "stop" and a mobile app to summon the car.  The front of the bubble-shaped car is designed to look like it's smiling.  This is only the beginning of what Google hopes to achieve as it tries to take over the world. Here is more info about the "car" and a look at the prototype.