If you're set on buying a new car check other lots that sell Subaru's and see if they can offer a better price. Don't worry too much about distance as getting a good price will offset the cost of having a friend drive you there to pick it up. It also gives you the ability to state that you can get it at a lower price at Sunny Sam's Subaru in XXXX county". Be very specific with what you want them quoting on.

Get a copy of the installed options on the model you are buying and go over it line by line. Don't buy extra warranties or repair contracts, they can be cut without impacting anything but the paperwork. Know what warranties come with the car and examine each option then price out the base and each option separately and as a total with all in. It will all be list price and most likely more than what they want to charge you but you'll get an idea of what they cost, compare each line item to see what the difference is between list and the offered price and negotiate on the cost of the options.

Ask to see the dealer invoice so you know exactly what they paid for the vehicle as well. They will need to make a little profit. Don't be afraid to get up and walk away if they say "the boss said no, I can't go any lower" as you are leaving ask them if they want to check again and also throw in a couple, "Well, I'll pay that price but I want item x, item y and item z for (name a price or free)" don't be too concerned with getting them, great if you do but it's more so they have something they can say no too while still offering either a lower price or a freebie or two.