Also, there was an article recently that (at least in US) the CO2 emission norms are not absolute but relative to car size; to the absurd point that to fit into

Also, there was an article recently that (at least in US) the CO2 emission norms are not absolute but relative to car size; to the absurd point that to fit into the norms, it's easier to make the car bigger, rather than to lower the emissions of a smaller car. Hence, SUVs.