The General Motors Corporation opened over a century ago with humble beginnings to grow into the company that became the global business powerhouse it is today. Established in 1908 by William C. Durant, General Motors was the end-product of combining the Buick, Oldsmobile, Cadillac, and Oakland companies. From the 1920s onwards, GM grew from a company that accounted for about 10% of new auto sales in the U.S. to becoming the largest...