best thing you can do is act indifferent with them, go in say i'll buy it at MSRP and if they say no just walk out. they will call you before you get to your house LOL
i recently ordered a turbo S, they told me GT3s are $75K over sticker, i told them i would never pay over sticker doesn't matter how bad i want the car, i haven't stopped thinking about the manual GT3 touring since i drove it but no way.. i wont contribute to this because it ruins it for everybody else. i hung up the phone and they called back and said they couldn't give me a GT3 at MSRP because of such high demand but they would sell me a Turbo S at MSRP i said deal.. LOL i just have to wait 2 years for it