From the video description:
We announced our self-driving car project in 2010 to make driving safer, more enjoyable, and more efficient. Having safely completed over 200,000 miles of computer-led driving, we wanted to share one of our favorite moments. Here's Steve, who joined us for a special drive on a carefully programmed route to experience being behind the wheel in a whole new way. We organized this test as a technical experiment, but we think it's also a promising look at what autonomous technology may one day deliver if rigorous technology and safety standards can be met.