- Size: Real cars are much larger than miniature cars, so they have more surface area available for solar cells. This allows them to generate more electricity from the sun.
- Weight: Real cars are also much heavier than miniature cars, so they need more power to move. Solar cells can provide this power, but they need to be larger to generate enough electricity.
- Speed: Real cars can travel much faster than miniature cars, so they need more energy to overcome wind resistance and friction. Solar cells can provide this energy, but they need to be larger to generate enough electricity.
- Efficiency: The efficiency of solar cells decreases as the size of the cell increases. This means that larger solar cells need to be used to generate the same amount of electricity as smaller cells.