
In Subject Two, 30 centimeters appears roughly as the width of two fingers in the rearview mirror. Here are some techniques to determine the 30-centimeter distance in Subject Two: Observing the wiper protrusion: From the driver's seat, when the protrusion of the wiper aligns with the right-side boundary line, the distance is approximately 30 centimeters. Looking at the one-third point of the car's front: Focus on the one-third point of the car's front (right side). When this point aligns with the right-side boundary line, the distance is exactly 30 centimeters. It may be challenging to locate this one-third point consistently. During practice, consider marking it on the car and remove the mark once you get accustomed. Checking the right front door handle: Observe the right front door handle in the right rearview mirror. If the handle is tangent to the right-side boundary line, the distance is correct. If it's too far, minor steering adjustments are needed. If it's too close, there's a risk of crossing the line.


