text: Now the concpets of driverless cars arent that far away because of all the techonoly we have now in the world. Google modifeid the Toyota prius . They use sensors on the left wheel to position it , it has a rotatiing sensors on the roof, video camrea mounted on the rear , it has four automotive radar sensors , and a intertial sensor. All the techonoly i just named off helps the car be aware of its surrondings. the rotating sensor on the roof makes a 3-D model of the cars surrondings to keeps track whats going on. the driverless car mimics the skills of a humam at the wheel. The driversless cars are not fully without need of human skill, in diffcult or dangerous sistutation the car will alret the driver to take hold of the wheel and move through it . The car stills requires the human to remain alret the whole time while in the car .