Driverless cars

FILE - In this May 5, 2015, file photo, Lyft co-founder Logan Green speaks at TechCrunch Disrupt NY event, in New York. Ride-hailing giant Lyft is releasing financial details about the company in a federal filing before it begins selling its stock to the public. (AP Photo/Richard Drew, File)

File -- In this Friday, Feb. 22, 2019 photo Harald Krueger, left, CEO of the car manufacturer BMW, and Dieter Zetsche, right, CEO of the Daimler stock company and the car manufacturer Mercedes Benz, talk during a press conference in Berlin, Germany. Automakers BMW and Daimler said on Thursday, Feb 28, 2019 they will work together on developing the automated driving technology expected to transform the industry in the years ahead. (Bernd von Jutrczenka/dpa via AP, file)

FILE- This Jan. 16, 2019, file photo shows a GMC Sierra pickup, left, and Denali in Detroit. General Motors' posted an $8.1 billion net profit last year as it got better prices for vehicles sold in the U.S., its most lucrative market. The performance was far better than the previous year, when the company lost $3.9 billion due to a giant tax accounting charge.(AP Photo/Paul Sancya, File)

FILE - In this Jan. 8, 2017, file photo a Chrysler Pacifica hybrid outfitted with Waymo's suite of sensors and radar is displayed at the North American International Auto Show in Detroit. 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. (AP Photo/Paul Sancya, File)

Ford Motor Co. President and CEO, Jim Hackett, left, meets with Dr. Herbert Diess, CEO of Volkswagen AG, Monday, Jan. 14, 2019, at the North American International Auto Show in Detroit. (AP Photo/Carlos Osorio)

Chairwoman and CEO of General Motors Mary Barra is interviewed on the floor of the New York Stock Exchange, Friday, Jan. 11, 2019. General Motors strengthened its pretax profit estimate for 2018 and predicted even stronger performance for this year as it executives made a presentation to investors on Friday. (AP Photo/Richard Drew)

An autonomous vehicle called an R1 created to deliver groceries is displayed outside a Fry's grocery store, which is owned by Kroger Co., in Scottsdale, Ariz., Tuesday, Dec. 18, 2018. The fully autonomous vehicle is set begin piloting public roads Tuesday with no back up driver, though it will be monitored by humans in another automobile. (AP Photo/Brian Skoloff)

This March 17, 2017, photo shows an Uber self-driving Volvo in Pittsburgh. The Pennsylvania Department of Transportation has approved Uber's request to resume testing of autonomous vehicles on public roads in the Pittsburgh area. The approval, effective Monday, Dec. 17, 2018, and lasting for one year, comes about nine months after one of Uber's autonomous test vehicles hit and killed an Arizona pedestrian. Testing was suspended after March 18 crash in Tempe, Arizona. (AP Photo/Gene J. Puskar)

In this Nov. 20, 2018, photo provided by General Motors/Cruise, from left, Cruise Automation's Dan Kan and Kyle Vogt pose for a photo with General Motors' Dan Ammann at Cruise Automation offices in San Francisco, Calif. General Motors’ No. 2 executive is moving from Motor City to Silicon Valley to run the automaker’s self-driving car operations as it attempts to cash in on its bet that robotic vehicles will transform transportation. In a transition announced Thursday, Nov. 29, GM President Ammann will become CEO of the company’s Cruise Automation subsidiary at the beginning of next year. He will replace Cruise co-founder Vogt, who will become chief technology officer. (Noah Berger/General Motors, Cruise via AP)