General motors (gm) was founded on 16 september 1908. Since william durrant created general motors, general motors has produced and sold a range of brand models and services worldwide, including chevy, beak, gmc, cadillac, bo, holden, obel, woxhall and goecho. In 2014, multiple branded car-wide models under the general motors flag were sold to more than 120 countries and regions worldwide, including electric vehicles, microcars, heavy full-sized trucks, compact vehicles and convertibles. On 4 january 2016, the united states general motors corporation announced that its board of directors had voted unanimously to appoint chief executive officer mary ballah as chairman of the board, with immediate effect. The former teodor solso of bara will remain on the board as the chief independent director. General motors is one of the largest enterprises in the united states that has long been subject to equity and group management, with a particular emphasis on quality clearance and the introduction of new technologies, and its products remain well known to users. With breakthroughs in batteries, electric cars and power controls, general motors continues to expand its advanced position in car electrification. At the same time, general-purpose vehicles actively advance the advancement of energy-saving technologies, including direct-jet technology, the timing of variable gas doors, turbocharges, six-phase transformers, diesel engines and optimization of aerodynamic design。