Plenty of folks in Austin, Texas have spotted Google's distinctive self-driving Lexus cars recently, and now we know why. The company revealed that it's now rolling the vehicles in downtown Austin in order to "(test) our software in different driving environments, traffic patterns and road conditions." While Google could also test its self-driving cars in Nevada and elsewhere, Austin is the first city outside of Mountain View where it's actually done so. The reason? "We've loved how much Austin embraces innovation," a Google spokesman told the Austin American-Statesmen. She added that with Google Fiber and several company offices in the city, it was a natural fit for self-driving cars.