Google Autonomous Prius

Nevada has officially granted Google a license to test autonomous vehicles on public streets. The tech giant underwent demonstrations in both Las Vegas and Carson City to prove its vehicles are as safe or safer than those piloted by mere humans. The state requires two people to be in the test vehicles at all times, including at one occupant in the driver's seat and another monitoring the vehicle via an onboard computer. If anything goes wrong, the human "driver" can take over by simply applying the brakes or taking hold of the steering wheel.

As of right now, Google has only applied to license three vehicles. Each one will carry a red license plate with an infinity symbol. According to Bruce Breslow, Nevada Department of Motor Vehicles director, vehicles with autonomous capability could be on the road within three to five years. When that happens, the machines will wear green plates.