text: In order to alert the passenger in the first place, the smart car would need to have a complex system of sensors. With these in place, the car could sense the speed, the engine function, and have a constant 3D analysis of the car's surroundings. This could allow for the car to sense danger in objects in all directions, as well as dangerous speeds and engine problems. These systems could detect and alert a human passanger much faster than the human could detect or even realize the issues before they cause an accident.