In speaking with a SA at my local Tesla today, those of us on the West Coast (I am located in WA) get the cars at the end of the quarter. Cars get produced in mass quantities and are shipped to East Coast of NA and Europe first since it takes longer to deliver then to West Coast. Apparently since my specific specs were popular enough on the East Coast there were none left to fulfill my July 19th - Aug 5th shipping date, that is why it jumped to October (beginning of the next quarter). No idea how accurate this information is, but thought I would share for my fellow West Coasters.