Car Tattoo

This yellow and green V-shaped symbol is called a Shoshinsha or Wakaba mark, and it must be displayed by new drivers (legal driving age is 18 here) on the front and back of their vehicle for one year. Like the Koreisha mark for elderly drivers, both types of marks are designed to warn other drivers that the marked driver is not as skilled, whether due to inexperience or old age.

(photo courtesy of K8!)