TIL in 1941, more than three million cars were manufactured in the United States... only 139 more would be made over the next 4 years of World War II

https://www.pbs.org/kenburns/the-war/war-production/

https://www.reddit.com/r/todayilearned/comments/154ateo/til_in_1941_more_than_three_million_cars_were/