So this is my first post to this forum, however I've read it for a little while now as I'm tempted to get an F30.
Anyway, to answer the question... This car has not technically been debuted in the North American market yet. Wait till the official debut at the North American Auto Show in Detroit in about a week and a half. I'd imagine the website will be updated within a day of the debut; still weeks before the cars are available for sale in the US.