
By now, many people would likely produce the correct answer when asked, Where in the U.S. are electric cars most popular? That would be California, which last year had almost seven battery-electric and plug-in hybrid cars registered per 1,000 people. But five other states have more than two plug-in vehicles per 1,000 residents—and we're...
Watch video footage of what the on-board computer "sees," how it detects other vehicles, pedestrians and traffic lights.