I guess it's the principle of the matter. Bente-Singko sentimos nga may nagpatayan ayon sa tabloid.
There is a global approach adapted in vehicle classification. Autoindustriya published an article on it. Compact cars are under the C-segment.
http://www.autoindustriya.com/featur...-segments.html
However, each country has its own governing policies in vehicle registration. In the case of our local LTO, vehicles are classified with respect to its gross weight.