Plug-in electric car sales for Apr: Bolt EV back over 1,000

2017 Chevrolet Bolt EV electric car, owned by Brian Ro, Columbia, MarylandWIth four-figure sales for both its all-electric Chevrolet Bolt EV and the Chevy Volt plug-in hybrid, GM probably led April's plug-in electric car sales. The "probably" comes because Tesla refuses to release its deliveries broken down either by month or by country, meaning there's no data to compare. GM's 3,102 deliveries—1,807 Volts, 1,292...