轉自孖星f104車手david jun:
Most of the time, it's ideal to minimize the weight of a car for the best performance. However, there exceptions such as low traction conditions where there just isn't enough weight transfer regardless of the chassis and suspension settings. This is the type of condition the F104X1 is designed for and adding ballast can improve the traction and stability of the car. However, placement of this ballast is equally as important because you want to add as little as possible.