美国一年汽车销售量1500万辆. 全世界大约8100万辆

https://www.marklines.com/en/statistics/flash_sales/automotive-sales-in-usa-by-month https://www.just-auto.com/analysis/global-vehicle-market-sales-rate-falls-back/#:~:text=A%20global%20market%20forecast%20at,in%20Europe%20and%20North%20America.