I came across this link to download PDF or view JPGs of the entire owner's manual. Since I see folks asking for these, here is a link to the PDF download. Looks identical when looked through few pages.
Your best bet is to still look into the glove box, chances are you will see a thick book there. Once opened, it will say Owner's Guide. Same thing here.
I like to have PDF version so i can store on my phone or notebook, for easy reference when doing anything on the car.


Click Here to get the PDF version of 2010-2013 Panamera Turbo.
I assume non turbo models have same book, except will contain some turbo only options.



JPG version is here.