Most auto accidents are caused by the four D's: distraction, drowziness, drunkenness and driver error. The fix is simple, remove the driver from the equation. That's why companies and research institutions all over the world are in a race to build the next generation of automobile - a driverless car.
Jennifer Gardy visits the Centre for Automotive Research at Stanford to take a look at their latest model and chat with Executive Director Sven Beiker about the future of driverless cars and when we'll see them on the road.
For more on driverless cars, watch 'Dreams of the Future' coming to the Nature of Things this fall.