What does the term 'wheelbase' refer to?

The term 'wheelbase' specifically refers to the distance between the front and rear axles of a vehicle. This measurement is crucial as it influences several aspects of vehicle performance and handling. A longer wheelbase typically provides better stability and a smoother ride, especially during highway driving or when carrying heavy loads. It helps in distributing weight evenly and enhances the vehicle's ability to navigate turns.

In contrast, the other options describe different aspects of a vehicle's dimensions. The total length of the vehicle pertains to how long the vehicle is from front to back, while the width relates to how far the vehicle spans from side to side. The height measurement focuses on the vertical distance from the ground to the top of the vehicle. Each of these measurements is significant, but they serve different purposes and do not define the concept of 'wheelbase' as accurately as the distance between the front and rear axles does.