Why is a higher overall gear ratio beneficial in certain driving scenarios?

A higher overall gear ratio is beneficial in certain driving scenarios because it allows the vehicle to operate efficiently at higher speeds. When the overall gear ratio is greater, the engine can provide more torque to the wheels, which translates into the potential for higher speeds during acceleration. This characteristic is particularly advantageous when merging onto highways or during overtaking maneuvers.

In situations where maintaining speed on flat terrain or going uphill is necessary, a higher gear ratio helps the vehicle sustain performance without the engine needing to work as hard, resulting in a smoother driving experience. Additionally, while fuel consumption can be affected by various factors when dealing with higher speeds, the main advantage of a higher gear ratio is the increased speed capability.

While lower engine RPM and enhanced torque delivery are also relevant factors, the primary reason for selecting a higher overall gear ratio in some driving scenarios revolves around achieving those higher potential speeds effectively.