Funny thing: In the middle of January I ordered a Model 3, and the expected delivery was May/June. I really wanted it for around June, and not before, and I was told that it'd be fine, and not to worry because it wasn't going to be delivered earlier anyways.
This Monday they assigned a VIN, and called me to let me know that if I wanted there was a car waiting for me, and I could pick it up the next day. I had to refuse as it wasn't possible for me at the moment, and asked them for a later delivery date.
* I ordered the white Tesla Model 3 with white interior, and nothing else.