Who’s afraid of driverless cars?

With companies as different as General Motors and Google investing in the technologies, self-operated cars are speeding towards road-going reality. The most recent reminder of this came from Nissan, which promised to put an autonomous vehicle in consumers’ hands by 2020. Luxury sedans from Mercedes-Benz, Lincoln, Volvo and Infiniti already contain some form of corrective-steering technology, with more brands joining virtually every few weeks.
Questions around how these vehicles will work and interact with traditional cars, and how broad the adoption will be, remain wide open.