Cars introduced in 1920

The Kessler Motor Company was a short-lived American manufacturer of aircraft engines and automobiles. The brand name for engines and automobiles was Kessler; also Kess-Line for some cars.

The Sheridan was a brand of American automobile manufactured from 1920 to 1921. Manufacture of the car was based in Muncie, Indiana. The Sheridan nameplate has the distinction of being the first automotive brand started from scratch by General Motors. Prior to the Sheridan, General Motors, under William (Billy) Durant, grew its automotive marques Chevrolet, Oakland, Oldsmobile, Buick and Cadillac, by acquiring independent manufacturers and then folding their operations into the GM structure.

The Duesenberg Model A was the first automobile in series production to have hydraulic brakes and the first automobile in series production in the United States with a straight-eight engine. Officially known as the Duesenberg Straight Eight, the Model A was first shown in late 1920 in New York City. Production was delayed by substantial changes to the design of the car, including a change in the engine valvetrain from horizontal overhead valves to an overhead camshaft; also during this time, the company had moved its headquarters and factory from New Jersey to Indiana. The Model A was manufactured in Indianapolis, Indiana, from 1921 to 1925 by the Duesenberg Automobiles and Motors Company and from 1925 to 1926 at the same factory by the restructured Duesenberg Motor Company. The successors to the company began referring to the car as the Model A when the Model J was introduced.

The Renault GS was a mid-size car manufactured by Renault from 1919 to 1920. It was also known as the 10CV.

The Cambro was a very basic British three-wheeled, single-seat cyclecar made in 1920 and 1921 by the Central Aircraft Company of Northolt, Middlesex.

The Fiat 510 is a passenger car produced by Fiat between 1920 and 1925. It was of a similar design than the smaller 501 and 505 models. Starting from 1920, a sports version 510 S with a more powerful engine and shorter chassis was made. Around 14,000 examples were produced.

The Severin Motor Car Company was a short-lived automobile manufacturer that started making cars in 1920 in Kansas City, Missouri and ended in accusations of stock fraud in 1921.

The Roger was a light car manufactured by Thomas Rodger & Co Ltd of Wolverhampton, England, between 1920 and 1924.

Louis Chenard was a French producer of automobiles, making cars at Colombes, near Paris from 1920 till 1932. Louis Chenard was always a relatively low volume manufacturer. Engines were bought in, mostly from Chapuis-Dornier.

The Blériot-Whippet was a British 4 wheeled cyclecar made from 1920 to 1927 by the Air Navigation and Engineering Company based in Addlestone, Surrey.