text: Two being that you never know when the car is going to lose control. It states that "GM has developed driver's seats that vibrate when the vehicle is in danger to backing into an object." For instence say you're in this "driverless" car, and you are going down a bump street, you won't be able to feel when the seat vibrates because it'll be so bumpy. With that being said that can make you lose control and crach the car. Now, what if this happend to happen and you have an infant in the car, your risking not only your life but the passangers/the infant in that car!