General Motors CEO Mary Barra (left) and North America President Alan Batey with the Chevrolet Bolt EV concept vehicle Monday, January 12, 2015 during its unveiling at the North American International Auto Show in Detroit, Michigan. The Bolt EV concept is Chevrolet’s vision for an affordable, long-range, all-electric vehicle designed to offer more than 200 miles of range – starting around $30,000. (Photo by John F. Martin for Chevrolet)