What visual clues might indicate a problem with the suspension?

The indicators of suspension problems are closely tied to the way a vehicle handles and rides on the road. Uneven tire wear can suggest that the suspension is not maintaining the correct alignment, which can cause tires to wear unevenly due to improper contact with the road. A vehicle leaning to one side may indicate that a spring, shock absorber, or other suspension component is damaged or worn out, resulting in an imbalance in weight distribution. Additionally, a bumpy ride is a clear sign that the suspension system is failing to absorb road impacts effectively, leading to a harsh driving experience.

In contrast, the other options do not relate to the suspension system. Unusually loud engine noise is more associated with engine issues rather than suspension. Visible smoke from the exhaust typically indicates a problem with the engine or exhaust system, such as burning oil or coolant, rather than suspension components. Insufficient trunk space is a matter of vehicle design or configuration and does not pertain to the functionality of the suspension. Thus, the visual clues related to uneven tire wear, a vehicle leaning to one side, and a bumpy ride are the primary indicators of potential suspension problems.