Why doesn't China allow the use of V6 engines?

[DeAdriel]

Starting too late with such high demand, using L4 engines aligns with national conditions. Below is relevant information about engines: Concept: An engine (Engine) is a machine capable of converting other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc. For example, internal combustion engines typically convert chemical energy into mechanical energy. Classification: Internal combustion engines, external combustion engines (where fuel burns outside the engine), gas turbines, and jet engines.