Whether the ideal One20 can be changed to 21 depends on which parts and designs are changed. If it is only minor changes such as appearance details, color matching or wheel hub, it can be achieved through appearance kits or upgrade accessories; However, if it is the upgrade of core components such as the engine, chassis and body, it requires a large modification, and the cost and risk are higher. Therefore, whether the ideal One20 is suitable to be changed to 21 requires comprehensive consideration of factors such as the purpose of modification, budget and practicality.