Plug-in electric car sales for May: best Bolt EV month yet, Leaf and Volt higher too

2017 Chevrolet Bolt EV added to Maven car- and ride-sharing fleet in Los Angeles, CaliforniaSales of three high-volume plug-in electric cars rose last month, with the 2017 Chevrolet Bolt EV 238-mile battery-electric hatchback logging its highest monthly total since sales began in December. Chevrolet delivered 1,566 Bolt EVs, bringing this year's five-month total to 5,950 (another 579 were sold in December 2016). The Bolt EV is continuing...