In this May 13, 2015 photo, Teresa Favuzzi, of Sacramento, waves as she gets a ride in the new Google self-driving prototype car during a demonstration at Google's campus in Mountain View, Calif. The plan of traditional automakers is to gradually automate more functions of driving until, perhaps by 2025, some cars will be fully capable of driving themselves. But Google, Alibaba, Baidu and other tech companies are aggressively working on their own self-driving vehicles, and could leapfrog the car industry in bringing them to market. AP Photo/Tony Avelar