How can overloading impact the transport of metal coils?

Overloading can indeed lead to vehicle maintenance issues, making this choice the correct one. When vehicles are loaded beyond their intended weight capacity, several mechanical components, such as tires, brakes, and suspension systems, experience additional stress and wear. This can result in premature failure of these components and may require more frequent repairs and part replacements. Additionally, overloading can affect the overall balance and handling of the vehicle, putting further strain on the mechanical systems, which can lead to costly downtime and maintenance.

Regarding the other options, overloading does not improve fuel efficiency; in fact, it generally decreases efficiency because the engine has to work harder to move the added weight. Although overloading may seem like it could reduce transport costs due to carrying more cargo at once, the long-term costs associated with damages and increased maintenance often outweigh any potential savings. Lastly, overloading has a significant negative effect on safety, as it can impair the driver's ability to control the vehicle and increase the risk of accidents.