The gasoline engine is a little worse, but Chery and Great Wall all have turbocharged gasoline engines, double variable valves and variable intake manifolds. Although it is not as good as Volkswagen's turbocharging and in-cylinder direct injection, their engines are generally low-pressure supercharged, while Volkswagen and GM Opel are high-pressure, so the lifting power is extremely high, so they can't be compared for the time being. However, domestic turbochargers still have great advantages over Japanese and Korean variable valve engines. It is strange that Japan and South Korea don't have turbocharged engines. However, Japanese cars have large displacement vehicles, such as v8 engine, which has high power and high fuel consumption, and is an old engine in the 1980s. Domestic engines generally use Bosch electronic system, but Volkswagen also uses Bosch electronic system, and Chery uses its own engine electronic system. Bosch's joint venture in China is called Lianhua, which produces most auto parts. The tsi+dsg power system wholly owned by Volkswagen in Dalian has a localization rate of 100%, and the turbocharger of GM Buick is imported from the German subsidiary Opel.
Aircraft and steam turbines can only blame the material industry and market. There are not many military purchases, but fortunately there are Taihang engines, which should be enough for j- 10 fighters.
In fact, the domestic engine is ok, but the automatic transmission is not. Almost 100% of its own brands are imported. Aisin Seiki, the cvt continuously variable transmission just developed and listed by Chery, and the 6at mechanical automatic transmission acquired by Geely are all made in China.
Anyway, it's not a technical problem. As long as there is market demand, no technology is a problem.