Why do domestic cars basically imitate foreign cars?

When an enterprise develops to a certain stage, it is right to eat well before eating well, but if you eat well, you will be satisfied and there will be no great hope. Originally, the domestic design level was not high, and there was no shortage of good design for independent brands, which originated from the conservatism of enterprises. In addition, although the design is simple, it involves many things such as aerodynamics, and the development cost is very high.