Google testing prototype cars
Google Inc has begun testing its self-driving cars in Austin, Texas, expanding efforts to gather information on how the prototypes interact with traffic, road conditions and people.
Google has been testing self-driving prototypes since 2009, mainly around its Silicon Valley headquarters in California. It is sending a second specially-equipped Lexus RX450h prototype to Austin this week.
Last month, the company began testing tiny, bubble-shaped self-driving prototype vehicles.