What is the best method to find the 30cm reference point for Subject 3?

[LaFernando]

Methods to find the reference point are as follows: 1. Observe the wiper protrusion: Align the protruding part of the left wiper with the right lane line. After straightening the vehicle body, the distance should be approximately 30cm. 2. Look at the one-third point of the front of the car: Align the right one-third of the car's front with the right lane line (if there is a circular mark on the hood, it should be near the tangent line). At this point, the distance is also about 30cm. 3. Observe the right front door handle: In the right rearview mirror, align the highest point of the front door handle with the right lane line. The distance should also be exactly 30cm, provided the vehicle body is properly aligned. 4. Align the left reinforcement rib with the center of the dashed line ahead: This method is used for maintaining a 30cm distance from the right lane line during hill starts and parallel parking. There's no need to check the rearview mirror; just focus on the front of the car and adjust the steering promptly if it deviates.