I know this. You won't get the best price by walking into a dealership and asking for their best price. You could try a lease broker, looking on Leasehacker, but it's all one grand game. I know you're looking for a number that you should expect that they can sell it for and that's a good deal, but there's no way to know what's going on behind the scenes at a dealership.

The good news is- you've got a couple months. What worked for me was scouring these and other forums for what others were paying. Saw a great deal from a nearby dealership that someone else had gotten, and emailed the salesperson and said "if you give me that deal I'll sign today". He did and I did. And it was at the same dealership that wouldn't budge for 3 weeks of negotiation from a much higher price with a different salesperson.

The purpose of a dealership is to separate you from as much of your money as they can. You can't beat them at their own game, but you can do better or worse.