What is one consequence of cargo overload on a vehicle?

Cargo overload on a vehicle significantly increases the risk of tire blowouts, making this the correct choice. When a vehicle is overloaded, the weight exerted on the tires exceeds their designed capacity, leading to excessive heat buildup and wear. This increased strain can cause tire failure, as the tires may not be able to handle the additional weight during acceleration, braking, or turning.

The other options are not valid consequences of cargo overload. Improved fuel economy cannot occur with an overloaded vehicle; rather, it typically results in decreased fuel efficiency due to higher energy requirements to move the extra weight. Likewise, enhanced handling and stability are compromised under overload conditions; a heavier load can lead to a more unstable vehicle that is harder to control. Lastly, cargo overload does not improve traction under wet conditions; it can actually reduce traction as the vehicle's balance and weight distribution become unfavorable, making it more difficult for tires to maintain grip on slippery surfaces.