Uber self-driving cars to hit the road in San Francisco "very soon"

On a nondescript street in downtown San Francisco, an unremarkable parking garage with dusty walls and painted-over windows seems like an abandoned warehouse. Row upon row of shiny self-driving cars await their moment. At first glance, they look like regular dark-gray Volvo SUVs and white Ford sedans. But they're decked out with rectangular sci-fi contraptions on their roofs. The Uber logo is emblazoned across their doors.