Detroit is called the Motor City for a reason. We practically invented automobile manufacturing. Henry Ford invented the assembly line here. The biggest car company in the world is a few hundred feet away from the NAIAS. Most major car companies have their North American HQ in the Detroit area. Most car fans recognize Detroit as the car Mecca of the world. If it weren't for Detroit, the world would be a completely different place...and not for the better. Shall I go on?
Actually the assembly line was "invented" by Ransom Olds and patented by Olds and put in use making the Oldsmobile Curved Dash, though Ford was credited with the invention due to his addition of an conveyor, one could argue it was seven years and many intelligent men and women who worked for Ford who perfected/invented it. Further, as with all things, to say either man invented it, is incorrect. Systems of mass production, interchangeable parts, and assembly lines where in use in Europe, England and the US in the making of steam engines, furniture, milling of timber, and firearms before Ford or Olds ever rolled up.
But I digress.
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Streeto
"The first big auto manufacturers were French: Panhard & Levassor (1889) and Peugeot (1891).
Although, that's not to say Ford didn't make a huge impact on it later." -Streeto
Detroit and Lansing, Michigan (I think more importantly) are the foundation of the car as we know it. The Oldsmobile and then Austin 7 where the first cars with the layout of an automobile as we know it. I know Mr. Benz and his Motorwagen where first, and many French and Italians thereafter, but, Not one, until Mr. Olds. made it Drivable, and this is key, it wasn't till Oldsmobile gave us three pedals one for each Clutch, Brakes and Gas, a stick through the floor for shifting, a handbrake and a Steering Wheel (That's the big one) Most of these earlier Motor Carriages had all sorts of knobs and handles and levers for turning, deadly really. Even though other companies made "cars" earlier than those of Mr. Olds. Panhard and others where essentially replicas of what Mr. Benz had done. Namely, carriages with motors and nonsensical controls. Even the Model T was not what one would call "safe" it was slightly better. What Mr. Ford did, was, he made it affordable. The Model T was the best selling car ever (It may be No.1 still, but, I think, The Beetle may have this, not sure)