GM goal: profitable, affordable electric cars built in big numbers

2017 Chevrolet Bolt EV pre-production vehicles at Orion Township Assembly Plant, March 2016Automotive innovation rolls out over many years, usually decades, and usually only a few companies lead. Others hang back, waiting to see if buyers will accept new features, new powertrains, and new types of vehicles. More than six years after modern electric cars hit the market in volume, many automakers are only now deciding on their strategies...