A model presents a motorcycle during the 37th Thailand International Motor Expo 2020 in Bangkok, Thailand, Dec. 13, 2020. The 37th Thailand International Motor Expo 2020 closed on Sunday. About 31 car makers and 20 motorcycle makers attended the 12-day expo held from Dec. 2 to 13. (Xinhua/Zhang Keren)

Visitors view a new energy automobile during the 37th Thailand International Motor Expo 2020 in Bangkok, Thailand, Dec. 13, 2020. The 37th Thailand International Motor Expo 2020 closed on Sunday. About 31 car makers and 20 motorcycle makers attended the 12-day expo held from Dec. 2 to 13. (Xinhua/Zhang Keren)

Photo shows a new energy automobile during the 37th Thailand International Motor Expo 2020 in Bangkok, Thailand, Dec. 13, 2020. The 37th Thailand International Motor Expo 2020 closed on Sunday. About 31 car makers and 20 motorcycle makers attended the 12-day expo held from Dec. 2 to 13. (Xinhua/Zhang Keren)

A visitor looks at an Audi sports car during the 37th Thailand International Motor Expo 2020 in Bangkok, Thailand, Dec. 13, 2020. The 37th Thailand International Motor Expo 2020 closed on Sunday. About 31 car makers and 20 motorcycle makers attended the 12-day expo held from Dec. 2 to 13. (Xinhua/Zhang Keren)

Visitors view Volvo cars during the 37th Thailand International Motor Expo 2020 in Bangkok, Thailand, Dec. 13, 2020. The 37th Thailand International Motor Expo 2020 closed on Sunday. About 31 car makers and 20 motorcycle makers attended the 12-day expo held from Dec. 2 to 13. (Xinhua/Zhang Keren)

A visitor tries a motorcycle during the 37th Thailand International Motor Expo 2020 in Bangkok, Thailand, Dec. 13, 2020. The 37th Thailand International Motor Expo 2020 closed on Sunday. About 31 car makers and 20 motorcycle makers attended the 12-day expo held from Dec. 2 to 13. (Xinhua/Zhang Keren)

A visitor passes by a Rolls-Royce car during the 37th Thailand International Motor Expo 2020 in Bangkok, Thailand, Dec. 13, 2020. The 37th Thailand International Motor Expo 2020 closed on Sunday. About 31 car makers and 20 motorcycle makers attended the 12-day expo held from Dec. 2 to 13. (Xinhua/Zhang Keren)

Visitors view a BMW car during the 37th Thailand International Motor Expo 2020 in Bangkok, Thailand, Dec. 13, 2020. The 37th Thailand International Motor Expo 2020 closed on Sunday. About 31 car makers and 20 motorcycle makers attended the 12-day expo held from Dec. 2 to 13. (Xinhua/Zhang Keren)

A salesman explains during the 37th Thailand International Motor Expo 2020 in Bangkok, Thailand, Dec. 13, 2020. The 37th Thailand International Motor Expo 2020 closed on Sunday. About 31 car makers and 20 motorcycle makers attended the 12-day expo held from Dec. 2 to 13. (Xinhua/Zhang Keren)

Photo shows a racing car during the 37th Thailand International Motor Expo 2020 in Bangkok, Thailand, Dec. 13, 2020. The 37th Thailand International Motor Expo 2020 closed on Sunday. About 31 car makers and 20 motorcycle makers attended the 12-day expo held from Dec. 2 to 13. (Xinhua/Zhang Keren)