It’s when your car was delivered not produced!Handles are potentially goodwill, but drive units in all 85 cars are still under warranty as long as the vehicle isn't a salvage recovery. A 2013 will have a battery and drive unit warranty until the month of its manufacture in 2021.
@swegman covered my biggest issues right now. If your car is capped it will have less range and be slower than other P85 cars. If you're buying from Tesla, the other things should have some form of limited warranty but they are refusing to honor warranty right now if you're in the capped "test group"
Before I bought mine I went into Tesla with my vin and they told me when it was originally delivered!Good point. But Tesla being what it is today do you expect them to volunteer that information to CPO buyers? They have the door sticker, but no idea when the 1st owner took delivery.