The period is detailed in the T&C's linked to your original estimate. They can be found here:I ordered a P at the start of the week due to the good trade in prices, initial delivery estimate 29 May to 26 June which will be beyond the 60 days. I'm trying to find out if the 60 days is from the time you submit your trade in, or 60 days from them reviewing the photos and confirming the price, if it's the latter then it might just work out.
Point 4a states "The Seller shall deliver the Trade-in Vehicle, and Tesla shall take possession of the same, at a location indicated by Tesla. Unless otherwise agreed in writing between Tesla and Seller, delivery of the Trade-in Vehicle shall take place within 60 calendar days following Tesla’s provision of the Final Offer. The Trade-in Vehicle will be delivered to Tesla at the same time as the delivery of the Tesla Vehicle"