
Here are the detailed techniques for finding 30 centimeters during hill start: Observe the position of the engine hood: After hearing the voice prompt, you need to drive forward and stay to the right. When you see the right front corner of the engine hood (about 1/3 of its length) align with the roadside line, the distance between the car body and the roadside line is exactly 30 centimeters. Look at the raised part of the wiper: From the driver's seat, when the raised part of the wiper aligns with the right roadside line, the distance is approximately 30 centimeters. Check the right front door handle: Observe the right front door handle in the right rearview mirror. If the right front door handle is tangent to the right roadside line, the distance is just right. If it's too far, you need to adjust the direction slightly; if it's too close, there's a risk of crossing the line.

I've been driving manual transmission cars for over a decade, and finding that 30cm mark for hill starts really tests your experience. The key is choosing good reference points - I usually check the roadside line through the right rearview mirror, where 30cm roughly equals the distance from the outer edge of the door to the road marker. Once you've identified fixed reference points, practice starting repeatedly: slowly release the clutch, gently press the accelerator, and avoid sudden braking to stop precisely. Before the test, try getting the feel on flat slopes and practice several times in open areas to memorize the position. Don't panic when your perspective changes slightly going uphill - just sit upright and focus on observation. Don't overlook safety either; getting too close risks wheel scraping while being too far will cost points on the test. Use this technique regularly when driving up and down slopes in daily driving, and it'll become second nature with practice.

When I teach driving school, I often use this technique to train students. The first step is to locate a 30 cm reference point in the right rearview mirror, such as a road marking or the alignment point of the car's front. After memorizing the wheel position, the hill start should be steady: coordinate the clutch with the throttle, avoid abrupt braking, and stop in place in one go. Practice is crucial—start by getting familiar with the reference on flat ground, then try gentle slopes, and finally tackle steep slopes. If the engine stalls during the test, don’t panic; restart and continue. A related tip is to check the rearview mirror position to ensure clear visibility. Use this method frequently in daily driving for safe parking, time-saving, and maintaining distance to avoid accident risks.

When I first started learning to drive, I struggled with hill starts. The trick to finding the 30 cm is to look at the right mirror and align it with the roadside markings—30 cm is roughly the distance from the wheel to the curb. During practice, choose a small slope, slowly press the clutch and throttle, and try a few times to get the feel. Don’t be afraid of stalling; just restart the engine. Once you memorize the reference points, it’s easier to park accurately during the test.


