We all know about Henry Ford's assembly line. It gets talked about so much that a lot of people think the car was an American invention and that Henry Ford invented the car. It's not, and he didn't, but he did invent the affordable car. The assembly line is what keeps all cars from being $325,000 Rolls-Royces. Before Ford, cars were hand-built, extremely expensive to buy, extremely expensive to repair due to the hand-fitted parts, and out of reach for the vast majority of people. Ford started the chain of events that led to the rest of us owning cars. The Volkswagen Golf you drive and the BMW 335is you want wouldn't exist without the assembly line.