I am on the fence on what to do with my car. They definitely low balled me on the trade in price. I have about 50k miles on the car and one more year of warranty left. I bought the car when it was 3 years old and back when Tesla had the "CPO" program where they reconditioned the car. So I had 4 more years of warranty with the car. I love the car. It has the next gen seat that were made by Recaro with next gen rear seating. I am surprised that it has no rattles or squeaks. Pretty well put together. I guess It is a luck of the draw. Not sure if it makes sense to keep the car without warranty though.I actually just did the same, and Tesla offered me a LAUGHABLE amount, and i considered selling private party... I finally made the decision to keep it about 2 weeks before this... Hopefully insurance does better than Tesla, lord knows they couldn't do worse.
Best wishes, and good luck with your P85D! It's a great car!