When riding behind a car, traveling in the left third of the lane allows the driver to see you in their side mirror. What is a downside to this?
Most drivers do not look at their side mirrors as often as they look at their rearview mirror. Therefore, when following a car, it is generally most advantageous to ride in the center portion of the lane where you are most likely to be visible in the driver's rearview mirror.
This questions appears in the following tests: