GM boosts output of self-driving Bolts, test fleet

DETROIT – General Motors Co. says it has built 130 self-driving Chevrolet Bolt electric cars at a factory in suburban Detroit, making it among the first automakers to mass produce self-driving vehicles. The automaker has been building self-driving Bolts at its Orion Assembly Plant in Orion Township, Michigan, since January. Unlike GM's earlier self-driving test vehicles, the new cars were built on the same assembly line as regular Bolts that are being sold to customers. Once they rolled off the line, the self-driving Bolts went to another area of the plant to get their hardware installed. The Bolt is a fully electric car that went on sale late last year.