Wanted to share my experience today - I currently have a 2014 P85 with 7,000 miles and all options except 21" wheels, air suspension, and 3rd row seat. I was "toying" with the idea of getting the P85D. I know Tesla uses Starwood Motors in Texas for trade ins ( at least until the certified pre-owned program started) so I called them directly to get a price - here's the shocker now - car new was about $112k before $7.5 k federal rebate and the offer was $54k for a car a year old ( delivery 5/14) - Roughly a 50% hit!! In fact, my buyback guarantee is about the same, but at 36-39 months with up to 45k miles!! How's that for a low ball offer?? I guess I'll keep it a little longer now, or at the minimum, keep it till buyback period......