1. A cross-country vehicle chassis is used as the body to increase the height of the vehicle
2. Larger tires are used to move on rough terrain
3. Integrate the solar panel and Hydrogen–oxygen fuel cell
4. Design the circuits
of the LED indicator lights for going forward and back
5. Spread silicone around the tire for moving in water
6. Use Styrofoam sheets, boards and buoys to produce floatation
7. Use a “small fan” for heat sinking