Is the 30 cm distance for hill start determined by the front or rear wheels?

[Sylvia]

Observe the position of the front bumper, which is the foremost part of the vehicle. More information about Subject 2 is as follows: 1. Overview: Subject 2, also known as the small road test, is part of the motor vehicle driver's license examination and refers to the field driving skills test. The test items for small vehicles C1 and C2 include five mandatory components: reversing into a parking space, parallel parking, hill start and stop, right-angle turns, and curve driving. 2. Others: If the first attempt at Subject 2 is unsuccessful, a retake is allowed. If the retake is not attended or is still unsuccessful, the examination is terminated, and the applicant must reschedule the test after ten days. Within the validity period of the driving skills test permit, the number of scheduled attempts for Subject 2 and Subject 3 (road driving skills test) must not exceed five times.