How can we grasp the motorization process in the developing countries? In order to do that, we try to develop the concept of Standard Automobile Population and S-Curve. Firstly we compare the actual automobile population in each country with Standard Automobile Population, And then we analyze the divergence of the two indexes and locate the situation in the motorization process of each country. Secondly we analyze the entry user ratio and develop the S-curve. And then similarly we attempt to locate the situation in the motorization process of each country.
