GM is one of the earliest major automotive companies in the United States that is currently implementing the corporate ownership system and model management for expert groups. Great importance is attached to the control of product quality as well as the development and introduction of new energy technologies, so that its automotive products always belong to American car users. Has a high reputation in the heart. With its technological breakthroughs in the electrification of batteries, electric vehicles and power control, General Motors is further expanding its influence and leading position in the electrification of automobiles in the USA. At the same time, GM is actively promoting research and progress in efficient and energy-saving automotive technologies, including direct injection technology, variable valve timing, turbocharging, six-speed automatic transmission, diesel engines and improved and optimized aerodynamic vehicle design. Waiting