but not the US. I don't understand it.
Well let me enlighten you. China is becoming very wealthy very quickly. Car companies are competing for business there. Things like world premieres are part of the competition.
Meanwhile, Americans are in personal consumer debt up to their Chapter 7 petition. We Americans lost the right to expect all car companies to cater to our tastes and demands about the time we said "screw the American worker, I want cheap Chinese stuff from Walmart."
Chinese Buicks. Australian Pontiacs. German Saturns. America had better get used to it.