One of the problems with the Porsche website is that they don't list the "kazillion" options the company offers. An even bigger problem is that most of the time the dealers' salesmen don't know, and can't help you. Take a look at some of the auto websites such as Cars.com or Edmunds.com and you will get a better idea of what can be optioned. For example, you don't have to buy the two-tone interior and can just deviate the stitching, or dashboard, or carpeting to accent the interior and make it uniquely yours.
Have fun planning the car, it's a beautiful thing. I LOVE mine.