Cadillac
Cadillac was formed from the remnants of the Henry Ford Company. After a dispute between Henry Ford and his investors, Ford left the company along with several of his key partners in March 1902. Ford's financial backers William Murphy and Lemuel Bowen called in engineer Henry M. Leland of Leland & Faulconer Manufacturing Company to appraise the plant and equipment in preparation for liquidating the company's assets. Instead, Leland persuaded the pair to continue manufacturing automobiles using Leland's proven single-cylinder engine. A new company called the Cadillac Automobile Company was established on 22 August 1902, re-purposing the Henry Ford Company factory at Cass Street and Amsterdam Avenue. It was named after French explorer Antoine Laumet de La Mothe, sieur de Cadillac, who had founded Detroit in 1701.
Cadillac Model Thirty
The Cadillac Model Thirty is an automobile that was introduced in December 1909 by Cadillac, 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. 
The 1910 model was available with a closed body, the first time a US automobile manufacturer had offered this type.
The engine was the same 226.2 in³ (3.7 L) four-cylinder L-head design used in the Model G, and that car's simple sliding-gear transmission was also adopted. The engine was bored out to 255.4 in³ (4.2 L) for 1910 and 286.3 in³ (4.7 L) for 1911 and 1912. The engine was reworked, with a longer stroke, for 1913, giving 365.8 in³ (6.0 L) of displacement. This same engine served in 1914.
The 1912 model was awarded the Dewar Trophy for its electrical system, including its electric starter.