[readingnews]

I have not actually heard that argument. It has always been noted that Benz invented the car, and Ford invented the assembly line, for cars.

[devilbunny]

Yeah, as an American I never was taught that Ford invented cars. He invented cheap cars.

[UncleSlacky]

Oldsmobile invented the assembly line for cars: https://en.wikipedia.org/wiki/Ransom_E._Olds#Assembly_line

[mr_toad]

He was the first to mass produce cars. But given that cars and mass production already existed it was probably only a matter of time before someone decided to mass produce cars.