So as discussed in a few other threads, we know Tesla is not trying to be a used car dealer, but they will take your car as trade at auction value, or match a CarMax appraisal. So here's my plan for Model 3 delivery day: Go to CarMax first and get an appraisal Thank them and take the paperwork Go to the Tesla store where your 3 is waiting Tell them you'd like a valuation for your trade If the number is higher than the CarMax appraisal, go with it and don't mention the CarMax appraisal. If the number is lower, bust out the CarMax appraisal and have them match Boring paperwork. Leave the Tesla store in my Model 3. As far as I can tell from S/X owner stories they have had no trouble matching a CarMax appraisal, and in a couple instances the Tesla store came in higher. Of course it will be lower than a private sale, but in my case not worth it to have weird people driving my car, trips to the auto title place to get the paperwork straightened out, then arranging a chain reaction of 50-80 mile rides from friends/family to get me to the Tesla store on delivery day. Let me know any other way this could go down, too.