I am new to the forum and just placed my Model S order on Jan 12. I received an email from Tesla last Friday, Jan 19 that the 21" grey turbines on my confirmed order were being "upgraded" for free. The two pictures of the new wheels in the email don't provide much more detail than the configurator, but from what I have seen I do not care for the new wheels and would not have committed to a $4,500 option a week earlier if I had known the change was coming. This does not feel right and is a disappointment. I hope I can choose not to accept the "upgrade."