American, Car and Automotive company firsts:
1909: Christie, in the US, mounts four-cylinder engine and gearbox transversely to drive front wheels.
1910: The first car with safety glass windows as standard equipment is the Cadillac.
1909
elco, in the US, produces the first coil and distributor ignition system.
1912:Ford Model T: As an answer to the hand crank, Kettering in the US, integrated the starter -- adapted from the cash register motor -- into a complete ignition and electrical system, which included a battery recharged by a generator run by the engine and electric headlights to replace acetylene lamps
1914:The first production car to have all-independent suspension was the 1914 Cornelian, built by the Blood Brothers of Michigan
1915: Cadillac pioneers thermostatic control of the cooling system.
1916: The earliest automated wipers were on the 1916 Willys Knight (US)
Packard sells first production car with a V12 engine, the Twin Six.
Packard Twin Six (V12) model is first car to have alloy pistons.
1919: DMG builds the first supercharged car, 10/30 hp with a Knight engine.
There is many more bnut these are just some and this is not saying American car companies are so much better/greater. Just some1 asked what had the US done for cars in the last 100 years. Well here are just a few.