The Mercer Model 22 was a family of cars that debuted in 1915. The Model 22, which consisted of variants that included the Model 22-70, Model 22-72, and Model 22-73. These cars were powered by a 4.9L inline four engine that generated 70hp, which was sent to the rear wheels through a manual transmission. Production of the Mercer Model 22 ended in 1917.