Google researchers have been working on a secret car project that can drive themselves, using artificial-intelligence software.
Google has seven test cars that have driven a total of 140,000 miles in traffic. The cars are a modified version of the Toyota Prius and one Audi TT.
The automated cars use video cameras, radar sensors, and a laser range finder to locate everything around them and detailed maps are used to navigate the road ahead collected using manually driven vehicles.
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