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I believe you can get a copy of the window sticker by purchasing a Certificate of Authenticity from Porsche for about $100, however as mentioned above you can decode the option sticker under the hood by googling "986 option codes" and you can identify the manufacture date and location from the sticker on the bottom of the driver's door. There are a few online dealers that charge to do this, but it can be done yourself for free and you will get all of the same information.