text: In todays world we are constantly using technology for almost everything in the world especially transportation. The reason we are not far from designing complete driverless cars is because most of our cars today basically already have the capability to drive on their own if it really had to. Take the Toyota Prius for example, it uses position-estimating sensors, rotating sensors, video camera on the rearview mirror, radar sensors, and inertial motion sensor. All of these forms of technology allow the driver to be completley aware of his or her surroundings. Even if the driver is not at full attention when driving, these sensors are able to alert the driver if something is wrong. Another advancement in cars has been the development of brakes and how they are able to stop if there is something in front of them or if they need to stop abruptly.