What happens to a vehicle if the suspension system is not properly maintained?

When the suspension system of a vehicle is not properly maintained, the handling characteristics of the vehicle can deteriorate significantly. The suspension plays a crucial role in maintaining tire contact with the road surface, providing stability during turns, and absorbing shocks from bumps and uneven surfaces. If components like shocks, struts, or springs are worn or damaged, it can lead to issues such as swaying, bouncing, or poor braking performance. All of these factors contribute to an increased risk of accidents, as the driver may find it difficult to control the vehicle, especially in adverse conditions.

The other options do not accurately reflect the consequences of poor suspension maintenance. The vehicle's ability to achieve higher speeds would not be enhanced; in fact, handling issues would likely compromise speed and safety. Similarly, fuel consumption may suffer as a result of poor alignment or increased rolling resistance rather than improve. Finally, engine performance is not directly related to the suspension system, so there would be no improvements there either.