If you can transport a larger number of people to a destination with the least carbon footprint, then it is the superior form of transportation. Nobody cares about what your dream car is and China cannot afford to have 1.4 billion cars on the road. The cities are congested as it is.This is not the way of achieving Lowest carbon footprint target... Is it going to bring full stop to other means of transport?? Will it stop you from buying your own dream car?? So this can't be an explanation...