Mate,
Never pay full price for anything, especially if you have the money in your pocket.
If your getting finance through them, you'll have bugger all chance.
At times, you may not get much off the retail price, but they will throw in free options.
Set a budget, tell them you want (inset make and model with extras) and you have this much $$$ ready to spend right now.
If they don't want to come to the party, walk away, it's your money.