I too am confused when I see these delays. My story after making my decision to order a car (mostly after viewing this site for a month) was to call my closest dealer. They said I could order but they could not say when I would get a car other than six months to a year. I called the another dealer in town and he sent me an email with three cars listed with three different delivery dates. I chose the one I wanted based on transmissions, and he gave me the com #, Production week, & probable delivery week. So I ordered July 11 and received on Sept 20. I am not saying there were not issues during that period. The salesman I started with is no longer employed with the dealer and they lied to me about several issues along the way. Mostly due to incompetence and not malice. But the time of the order and delivery was exactly like promised.
Bottom line is to make sure dealer has an allotment and a com. # or expect uncertainty.