Is there an online sales department? The last 3 cars we have purchased we emailed the online sales department of several dealerships and asked for their best price. Then we went to the dealership that gave us the best price with the email in hand and that was it.
I will say though that some dealerships won't give you a price like this. They want you to come in and will keep giving you the run around. Sometimes you can get them to give you a price if you tell them you got x price from another dealership and ask if they can beat it. If they won't give a price though that's a deal breaker for me because I am not into the whole haggling bs at the dealership. Did that once and I never want to do it again lol.
We are currently in the process of buying a new car and I have emailed 10 dealerships in our area asking them for their best price. A fair number of them don't want to provide pricing unless I come in, which is fine. I am trying to get them to negotiate more over email, but it is difficult to get them to give me their best offer over email. The biggest thing I found that worked last time we bought a car was to walk away or wait to respond to their emails. They always want to seal the deal TODAY, but time is your friend.
Look up the kelly blue book value for the car in excellent used condition. This is what it will be as soon as you drive it off the lot. Gives you a good base for price though you may not get it that low
With our last two cars we negotiate online or over the phone. Both times we have found a dealer about an hour away running a great deal and ask if the local dealership will match it.
I negotiated our last car purchase and I went in saying this is what I want and this is how much I will pay, do you want to sell me your car? Or do I need to go elsewhere?