General Motors Co. (GM) has begun testing Chevy Bolt vehicles featuring fully autonomous software that make them self-driving, joining the race to make the first viable self-driving vehicle.

GM's self-driving unit, Cruise, is headed by Kyle Vogt. 

"When Cruise first started we quickly retrofitted the Chevy Bolt EV with our technology. You're bolting things on roofs and stripping wires and ripping out interior panels to run wires in the car," Vogt said according to Recode. "A lot of blood, sweat and tears go into those cars and it's hard to keep them running. We're on our third generation of the vehicle and this is the real deal."

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