What is the difference between metal and plastic parts of MN MODEL MN91 RC CAR?

Metal parts usually have higher strength and hardness and can withstand greater pressure and impact. Metal parts are relatively heavy, which may affect the overall weight and performance of the vehicle. Metal parts generally have better thermal conductivity, which helps to dissipate heat and keep the temperature of the part stable.

Plastic parts are relatively light, which helps reduce the overall weight of the vehicle and improves its acceleration performance and fuel efficiency. Plastic parts generally have good corrosion resistance and can resist corrosion from some chemicals. Plastic parts are easy to process and mold, and can produce parts of various complex shapes and structures.