What are forward research and development and reverse research and development?

Reverse research and development, to put it bluntly, is to directly copy a mature model. Buy a mature model and disassemble it directly. Scan vehicle data. Modify particularly difficult points. Freeze the data, and then open the mold (the product is basically formed)! But don't think that reverse research and development is what car companies want. When a car company does not have enough technology and funds, it seems that it can only build a car like this. The same is true of early Japanese cars and Korean cars, and many Japanese and Korean car companies have developed in this way. Reverse R&D really saves a lot of time, and a car can be developed in about 1 year. The vehicle can be mass-produced within 36-42 months. In this way, there are huge savings in financial resources and time.