Akio Toyoda (L), president of Toyota Motor Corporation, and Danish architect Bjarke Ingels, CEO of Bjarke Ingels Group, pose at a news conference where Toyota announced plans to build a prototype city of the future on a 175-acre site at the base of Mt. Fuji in Japan, during the 2020 CES in Las Vegas, Nevada, U.S. January 6, 2020. REUTERS/Steve Marcus

Akio Toyoda (L), president of Toyota Motor Corporation, applauds Danish architect Bjarke Ingels, CEO of Bjarke Ingels Group, at a news conference where Toyota announced plans to build a prototype city of the future on a 175-acre site at the base of Mt. Fuji in Japan, during the 2020 CES in Las Vegas, Nevada, U.S. January 6, 2020. REUTERS/Steve Marcus

Akio Toyoda (L), president of Toyota Motor Corporation, greets Danish architect Bjarke Ingels, CEO of Bjarke Ingels Group, at a news conference where Toyota announced plans to build a prototype city of the future on a 175-acre site at the base of Mt. Fuji in Japan, during the 2020 CES in Las Vegas, Nevada, U.S. January 6, 2020. REUTERS/Steve Marcus

Akio Toyoda, president of Toyota Motor Corporation, announces Toyota's plans to build a prototype city of the future on a 175-acre site at the base of Mt. Fuji in Japan, during the 2020 CES in Las Vegas, Nevada, U.S. January 6, 2020. REUTERS/Steve Marcus

Akio Toyoda, president of Toyota Motor Corporation, speaks at a news conference, where he announced Toyota's plans to build a prototype city of the future on a 175-acre site at the base of Mt. Fuji in Japan, during the 2020 CES in Las Vegas, Nevada, U.S. January 6, 2020. REUTERS/Steve Marcus

Akio Toyoda, president of Toyota Motor Corporation, speaks at a news conference, where he announced Toyota's plans to build a prototype city of the future on a 175-acre site at the base of Mt. Fuji in Japan, during the 2020 CES in Las Vegas, Nevada, U.S. January 6, 2020. REUTERS/Steve Marcus

Akio Toyoda, president of Toyota Motor Corporation, speaks at a news conference, where he announced Toyota's plans to build a prototype city of the future on a 175-acre site at the base of Mt. Fuji in Japan, during the 2020 CES in Las Vegas, Nevada, U.S. January 6, 2020. REUTERS/Steve Marcus

Akio Toyoda, president of Toyota Motor Corporation, speaks at a news conference, where he announced Toyota's plans to build a prototype city of the future on a 175-acre site at the base of Mt. Fuji in Japan, during the 2020 CES in Las Vegas, Nevada, U.S. January 6, 2020. REUTERS/Steve Marcus

People take photos during a presentation by Toyota Motor Corporation President Akio Toyoda, who spoke about the concept of electric autonomous vehicle serving people, at the Tokyo Motor Show, in Tokyo, Japan October 23, 2019. Character reads "People" . REUTERS/Edgar Su

Toyota Motor Corporation President Akio Toyoda, arrives in their e-Palette autonomous concept vehicle to give his presentation at the Tokyo Motor Show, in Tokyo, Japan October 23, 2019. REUTERS/Edgar Su

Toyota Motor Corporation President Akio Toyoda speaks at the Tokyo Motor Show, in Tokyo, Japan October 23, 2019. REUTERS/Edgar Su

Toyota Motor Corporation President Akio Toyoda gestures as he speaks at the Tokyo Motor Show, in Tokyo, Japan October 23, 2019. REUTERS/Edgar Su

Toyota Motor Corporation President Akio Toyoda gestures as he speaks at the Tokyo Motor Show, in Tokyo, Japan October 23, 2019. REUTERS/Edgar Su

Toyota Motor Corporation President Akio Toyoda is seen inside the e-Palette autonomous concept vehicle at the Tokyo Motor Show, in Tokyo, Japan October 23, 2019. REUTERS/Edgar Su

Toyota Motor Corporation President Akio Toyoda speaks as he showcases the e-Palette autonomous concept vehicle (not pictured) at the Tokyo Motor Show, in Tokyo, Japan October 23, 2019. REUTERS/Edgar Su

Toyota Motor Corporation President Akio Toyoda speaks as he showcases the e-Palette autonomous concept vehicle (not pictured) at the Tokyo Motor Show, in Tokyo, Japan October 23, 2019. REUTERS/Edgar Su

Toyota Motor Corporation President Akio Toyoda gets out of an e-Palette autonomous concept vehicle at the Tokyo Motor Show, in Tokyo, Japan October 23, 2019. REUTERS/Edgar Su

Toyota Motor Corporation President Akio Toyoda gestures as he showcases the e-Palette autonomous concept vehicle (not pictured) at the Tokyo Motor Show, in Tokyo, Japan October 23, 2019. REUTERS/Edgar Su

Toyota Motor Corporation President Akio Toyoda, shows the e-Palette autonomous concept vehicle at the Tokyo Motor Show, in Tokyo, Japan October 23, 2019. REUTERS/Edgar Su

Junichi Miyakawa, CEO of Monet Technologies Inc., a joint venture of SoftBank Corp and Toyota Motor Corp that will develop self-driving car services, and Toyota Motor Corporation President and CEO Akio Toyoda attend a news conference in Tokyo, Japan March 28, 2019. REUTERS/Issei Kato

Junichi Miyakawa, CEO of Monet Technologies Inc., a joint venture of SoftBank Corp and Toyota Motor Corp that will develop self-driving car services, and Toyota Motor Corporation President and CEO Akio Toyoda attend a news conference in Tokyo, Japan March 28, 2019. REUTERS/Issei Kato

Junichi Miyakawa, CEO of Monet Technologies Inc., a joint venture of SoftBank Corp and Toyota Motor Corp that will develop self-driving car services, and Toyota Motor Corporation President and CEO Akio Toyoda attend a news conference in Tokyo, Japan March 28, 2019. REUTERS/Issei Kato

Junichi Miyakawa, CEO of Monet Technologies Inc., a joint venture of SoftBank Corp and Toyota Motor Corp that will develop self-driving car services, and Toyota Motor Corporation President and CEO Akio Toyoda attend a news conference in Tokyo, Japan March 28, 2019. REUTERS/Issei Kato

Junichi Miyakawa, CEO of Monet Technologies Inc., a joint venture of SoftBank Corp and Toyota Motor Corp that will develop self-driving car services, and Toyota Motor Corporation President and CEO Akio Toyoda attend a news conference in Tokyo, Japan March 28, 2019. REUTERS/Issei Kato

Junichi Miyakawa, CEO of Monet Technologies Inc., a joint venture of SoftBank Corp and Toyota Motor Corp that will develop self-driving car services, and Toyota Motor Corporation President and CEO Akio Toyoda attend a news conference in Tokyo, Japan March 28, 2019. REUTERS/Issei Kato

President of Toyota Motor Corporation Akio Toyoda speaks during the unveiling of the 2020 Toyota Supra during the North American International Auto Show in Detroit, Michigan, U.S., January 14, 2019. REUTERS/Brendan Mcdermid

President of Toyota Motor Corporation Akio Toyoda speaks during the unveiling of the 2020 Toyota Supra during the North American International Auto Show in Detroit, Michigan, U.S., January 14, 2019. REUTERS/Brendan Mcdermid

President of Toyota Motor Corporation Akio Toyoda speaks during the unveiling of the 2020 Toyota Supra during the North American International Auto Show in Detroit, Michigan, U.S., January 14, 2019. REUTERS/Brendan McDermid

President of Toyota Motor Corporation Akio Toyoda speaks during the North American International Auto Show in Detroit, Michigan, U.S., January 14, 2019. REUTERS/Brendan McDermid

President of Toyota Motor Corporation Akio Toyoda speaks during the unveiling of the 2020 Toyota Supra during the North American International Auto Show in Detroit, Michigan, U.S., January 14, 2019. REUTERS/Brendan McDermid

President of Toyota Motor Corporation Akio Toyoda and Formula One driver Fernando Alonso (R) pose in front of an image of the 2020 Toyota Supra during the North American International Auto Show in Detroit, Michigan, U.S., January 14, 2019. REUTERS/Brendan Mcdermid

President of Toyota Motor Corporation Akio Toyoda speaks next to the 2020 Toyota Supra during the North American International Auto Show in Detroit, Michigan, U.S., January 14, 2019. REUTERS/Brendan Mcdermid

President of Toyota Motor Corporation Akio Toyoda sits in the 2020 Toyota Supra during the North American International Auto Show in Detroit, Michigan, U.S., January 14, 2019. REUTERS/Brendan Mcdermid

President of Toyota Motor Corporation Akio Toyoda speaks in front of an image of a concept car during the North American International Auto Show in Detroit, Michigan, U.S., January 14, 2019. REUTERS/Brendan Mcdermid

President of Toyota Motor Corporation Akio Toyoda poses with the 2020 Toyota Supra during the North American International Auto Show in Detroit, Michigan, U.S., January 14, 2019. REUTERS/Brendan Mcdermid

President of Toyota Motor Corporation Akio Toyoda poses with the 2020 Toyota Supra during the North American International Auto Show in Detroit, Michigan, U.S., January 14, 2019. REUTERS/Brendan Mcdermid

President of Toyota Motor Corporation Akio Toyoda speaks at the unveiling of the 2020 Toyota Supra during the North American International Auto Show in Detroit, Michigan, U.S., January 14, 2019. REUTERS/Brendan Mcdermid

President of Toyota Motor Corporation Akio Toyoda speaks at his company's presentation during the North American International Auto Show in Detroit, Michigan, U.S., January 14, 2019. REUTERS/Brendan McDermid

Toyota Motor Corp President Akio Toyoda and SoftBank Group Corp Chairman and CEO Masayoshi Son attend their joint talk session in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

Toyota Motor Corp President Akio Toyoda and SoftBank Group Corp Chairman and CEO Masayoshi Son bow to each other at their joint news conference in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

Toyota Motor Corp President Akio Toyoda speaks during their joint news conference with SoftBank Group Corp Chairman and CEO Masayoshi Son (not pictured) in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

SoftBank Group Corp Chairman and CEO Masayoshi Son speaks during their joint news conference with Toyota Motor Corp President Akio Toyoda (not pictured) in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

Toyota Motor Corp President Akio Toyoda speaks during their joint news conference with SoftBank Group Corp Chairman and CEO Masayoshi Son (not pictured) in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

Toyota Motor Corp President Akio Toyoda speaks during their joint news conference with SoftBank Group Corp Chairman and CEO Masayoshi Son (not pictured) in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

SoftBank Group Corp Chairman and CEO Masayoshi Son speaks during their joint news conference with Toyota Motor Corp President Akio Toyoda (not pictured) in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

Toyota Motor Corp President Akio Toyoda shakes hands with SoftBank Group Corp Chairman and CEO Masayoshi Son during their joint news conference in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

Toyota Motor Corp President Akio Toyoda and SoftBank Group Corp Chairman and CEO Masayoshi Son bow to each other at their joint news conference in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato TPX IMAGES OF THE DAY

Toyota Motor Corp President Akio Toyoda shakes hands with SoftBank Group Corp Chairman and CEO Masayoshi Son during their joint news conference in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

Toyota Motor Corp President Akio Toyoda and Executive Vice President Shigeki Tomoyama poses for a photograph with SoftBank Group Corp Chairman and CEO Masayoshi Son and SoftBank Corp Representative Director and CTO Junichi Miyakawa during their joint news conference in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

Toyota Motor Corp President Akio Toyoda and Executive Vice President Shigeki Tomoyama bow with SoftBank Group Corp Chairman and CEO Masayoshi Son and SoftBank Corp Representative Director and CTO Junichi Miyakawa during their joint news conference in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

Toyota Motor Corp President Akio Toyoda and Executive Vice President Shigeki Tomoyama poses for a photograph with SoftBank Group Corp Chairman and CEO Masayoshi Son and SoftBank Corp Representative Director and CTO Junichi Miyakawa during their joint news conference in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

Toyota Motor Corp President Akio Toyoda shakes hands with SoftBank Group Corp Chairman and CEO Masayoshi Son during their joint news conference in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

Toyota Motor Corp President Akio Toyoda shakes hands with SoftBank Group Corp Chairman and CEO Masayoshi Son during their joint news conference in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

Toyota Motor Corp President Akio Toyoda shakes hands with SoftBank Group Corp Chairman and CEO Masayoshi Son during their joint news conference in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

Toyota Motor Corp President Akio Toyoda and SoftBank Group Corp Chairman and CEO Masayoshi Son bow to each other at their joint news conference in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

Toyota Motor Corp President Akio Toyoda and SoftBank Group Corp Chairman and CEO Masayoshi Son bow to each other at their joint news conference in Tokyo, Japan October 4, 2018. REUTERS/Issei Kato

Toyota Motor Corp President Akio Toyoda stands in front of a large screen showing him at a test drive, during "The Connected Day" event to launch the new Corolla and new Crown models in Tokyo, Japan, June 26, 2018. REUTERS/Kim Kyung-Hoon

Toyota Motor Corp President Akio Toyoda attends "The Connected Day" event to launch the new Corolla and new Crown models in Tokyo, Japan, June 26, 2018. REUTERS/Kim Kyung-Hoon

Toyota Motor Corp President Akio Toyoda attends "The Connected Day" event to launch the new Corolla and new Crown models in Tokyo, Japan, June 26, 2018. REUTERS/Kim Kyung-Hoon

Toyota Motor Corp President Akio Toyoda attends "The Connected Day" event to launch the new Corolla and new Crown models in Tokyo, Japan, June 26, 2018. REUTERS/Kim Kyung-Hoon