Ever imagine what is the real meaning or specifications behind any vehicles sold in the market labeled with 5 stars safety rating?

This is the American rating for car crash safety rating:

Front crash:-

5 stars - 10 percent or less chance of serious injury

4 stars - 11 percent to 20 percent chance of serious injury

3 stars - 21 percent to 35 percent chance of serious injury

2 stars - 36 percent to 45...