From some of your other posts, it sounds like your intent/hope is to trade and keep capitalizing on the subsequent $7500 credits. The credit sort of automatically depreciates the vehicle by that amount, because nobody else would want to pay nearly the same amount you paid out the door and NOT be able to get the benefit of the credit. (Exception: people who don't earn enough for the credit, perhaps, but they likely aren't in the market for such an expensive car; they'll want the used version that has the credit factored into the used price already)
So there's no real way to make money here. Now, depending on whether or not prices keep coming down, you have the potential in the future to trade in your vehicle at "just" the right time and make out well.
I traded my 2011 just before the price decreases, and ended up getting a 2013 with more options for only $3k out of pocket, after factoring in my additional tax credit that I can take on the 2013.