What is most affected when a vehicle experiences low traction?

When a vehicle experiences low traction, the most significant impact is on the vehicle's stopping ability. Traction refers to the grip that the tires have on the road surface, which is crucial for effective braking. When traction is reduced, perhaps due to wet, icy, or uneven surfaces, the vehicle's tires cannot maintain adequate contact with the road. This diminished grip can lead to longer stopping distances and increased risk of losing control while braking.

In situations of low traction, even applying the brakes can result in skidding or slipping, making it difficult for the driver to stop the vehicle as needed. Therefore, ensuring adequate traction is essential for safe and effective braking, emphasizing how crucial it is to maintain tire condition and to adjust driving behavior under poor traction circumstances.

The other options relate to different vehicle performance aspects. While low traction can affect comfort and potentially impact fuel efficiency and engine performance indirectly, the immediate and most critical area of concern in terms of safety is stopping ability.