Lansing, Jan. 23 -- Google's self-driving car spinoff Waymo said Tuesday it will bring a factory to Michigan, creating up to 400 jobs at what it describes as the world's first plant "100 percent" dedicated to the mass production of autonomous vehicles.

The company plans to spend about $13.6 million to retrofit a to-be-determined manufacturing facility in the Detroit area. In exchange, it will get a state incentive grant worth up to $8 million that was approved Tuesday by the Michigan Strategic Fund Board.

Waymo spokeswoman Alexis Georgeson said the company plans to hire up to 400 people to work at the factory, including engineers, operations experts and fleet coordinators. She said Waymo is looking for a site and hopes to open the plant...