General Motors General Motors General Motors Company, commonly referred to as General Motors (GM), is an American multinational corporation headquartered in Detroit that designs, manufactures, markets, and distributes vehicles and vehicle parts, and sells financial services, with global headquarters in Detroit's Renaissance Center. It was originally founded by William C. Durant on September 16, 1908 as a holding company. The company is the largest American automobile manufacturer, and one of the world's largest. As of 2018, General Motors is ranked #10 on the Fortune 500 rankings of the largest United States corporations by total revenue. General Motors manufactures vehicles in 37 countries;
Chrysler Sigma power and torque of . According to Chrysler, this made it the most powerful four-cylinder engine sold in Australia at the time. On 28 April 1980, Chrysler unveiled the GH Sigma in Brisbane. Then on 30 April, Mitsubishi Corporation and Mitsubishi Motors jointly acquired Chrysler's remaining 65 percent share of Chrysler Australia (bringing the dual Mitsubishi ownership to 98.9 percent). On 1 October 1980, the GH range was rebadged from Chrysler Sigma to Mitsubishi Sigma, due to the renaming of Chrysler Australia to Mitsubishi Motors Australia (MMAL) following the buy-out. Released to the market on 12 May, the GH series