General Motors plans to start selling cars that can drive partially in an auto-pilot mode and that can exchange speed and safety data with similarly equipped vehicles. The first features are expected to show up in high-end Cadillac vehicles for the 2017 model year -- in about two years -- but over time will move down market into GM’s other brands. Everyone recognizes that when cars can talk to each other and share information about speed, direction, operating performance and more, we'll save lives, save time and save money as well,” said Mary Barra, GM’s chief executive, in a speech to the Intelligent Transport Systems World Congress in Detroit.
