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My Tesla S 60D delivery window also just updated (MyTesla) this morning (7/25) from late July - August to 7/27 - 8/3. Hopefully, the car is on a truck on the way from the train depot.
My 60D order was assigned a VIN (1497xx) on 6/27. It went into production on 6/30. My delivery window has been the same since ordering: Late August-September. I'm also hoping for a revised & earlier delivery window.