Volkswagen (German: Volkswagen) is an automobile manufacturing company headquartered in wolfsburg, Germany, and the core enterprise of Volkswagen group, one of the world's four largest automobile manufacturers. In 2016, it ranked 7th on fortune global 500.
GM (General Motors Corporation, GM) was founded in 1908 on September 16, since William durant created since GM, GM's global production and sales, including Chevrolet, buick, GMC and Cadillac, baojun, holden, opel and vauxhall and wuling models and a series of brand and service.