Technological marvel: Cars can drive themselves now
A self-driving car is now one step closer to the fast lane.
Nevada is the first state to allow these vehicles onto the road.
The car is a Prius retro-fitted by Google.
The technology it uses is similar to that in a jumbo jet.
A human driver can take control, but the car is on auto-pilot -- navigated by artificial intelligence -- and assisted by the GPS and motion sensors.