I have had negative depreciation on the last three vehicles I've sold as well ($7390->$8200, $4500->$5500, $12,000->$13,000). :)
That is pretty badass! I am interested in details!
I'm interested in details too.
I'm currently shopping for a car -- an old Miata for autocrossing -- and one thing I've noticed is that they're a lot more expensive than they "should" be (compared to book value) and that they're a lot more expensive than they were a few years ago. I think that maybe between "cash for clunkers" and the recovery from the recession, there's recently been a general trend of used cars becoming more expensive. Plus, in the specific case of the Miata, the new ones aren't as good (for autocross) so the old ones are holding their value. I wouldn't be surprised if I'd be able to re-sell the Miata for a profit in a few years, assuming I find a good deal now.