The Cadillac Model Thirty was an American automobile introduced in December 1909 by the Cadillac Division of General Motors, and sold through 1911. It was the company's only model for those years and was based on the 1907 Model G. The 1912 Model 1912, 1913 Model 1913, and 1914 Model 1914 were similar, but used larger engines.[1][2] This platform used a four-cylinder engine that was cancelled in 1914, as other GM brands accepted the task of offering a less prestigious engine. The 1912 Model 30 was the first production car to have an electric starter rather than a hand crank, spring, or other early method.