Zoox is testing in various U.S. cities with more than 20 vehicles and plans to launch the commercial services in Las Vegas this year, followed by San Francisco, where it seeks to expand areas of operation.

The self-driving tech company has begun building its small, custom-designed vehicles at a new Bay Area factory ahead of its commercial ride-service launch in Las Vegas this year.

The 220,000-square-foot factory is located in Hayward, California near its Foster City headquarters. This is Zoox’s second production facility in the Bay Area, adding to the assembly warehouse in nearby Fremont.