What is the primary purpose of checking vehicle alignment during an inspection?

Checking vehicle alignment during an inspection plays a vital role in ensuring smooth driving performance. Proper alignment of the wheels means that all four tires are pointing in the same direction and making full contact with the road. This alignment impacts how the vehicle handles, steering response, and can prevent uneven tire wear. When the wheels are aligned correctly, the vehicle will drive straight without pulling to one side, providing a more controlled and comfortable driving experience.

While other aspects like safety, fuel efficiency, and suitability for long-distance travel also matter, they are secondary effects of proper alignment. For instance, misalignment can lead to handling issues that compromise safety, as well as increased rolling resistance that might affect fuel efficiency. However, the immediate and direct consequence of bad alignment is the adverse effect on the vehicle's performance during operation. Thus, smooth driving performance is the most fundamental reason for checking vehicle alignment during an inspection.