The hugest cars in all the world!

I am mystified still as to why there are so many of the largest class of sedan's in this city. Mercedes S600 V12's, Audi A8 L's, Bentley's, Maybachs, Buick Regals, Cadillac DeVille's... I saw an A8 L, trying to navigate a 90 degree turn the in the ancient HuTong district, people were throwing planks underneath the tires in order to have it fit over the curb. I just can't imagine the need for the biggest cars in the industry to be here. Sure sure status symbols need to happen, peeps need their fast cars, but in the city!? There is a cc regulation on motorcycles, which to my dismay is why I don't see any street bikes or awesome old chinese choppers. Why not a width regulation on cars? I don't get it. Out.