text: These cars can steer, accelerate, and brake themselves, but all of the cars are designed to notify the driver when the road requires human skills. This will definatley keep people aware of whats going on around them; new drivers espcially. The smart car will keep you alert at all times; which most normal cars lack today. After a while people get so used to driving that they do not pay attention. This makes the road a dangerous place. GM has created a sensor to let you know when the vehicle is in danger of backing into an object. The seat will vibarte, and the Google car will announce to the driver to take over. Manufacturers are considering using cameras to watch the drivers to see if they are doing what they are supposed to do.