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.