DETROIT -- General Motors Co. says Tony Posawatz, 52, the engineer who oversaw the Chevrolet Volt plug-in hybrid's development and production since 2006, has retired.
The company, the world's largest automaker by sales volume, isn't releasing a statement regarding his retirement, a spokesman said.
Mr. Posawatz's decision was made after GM Chief Executive Officer Dan Akerson cut his sales forecast for the Volt.
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