It's from Florida and he didn't list the VIN....that alone is enough to make me click the "back" button on that ad
The ad is just crappy. It's a big word salad brick of text, plus the pics are terrible and don't even show the interior at all. Porsches are all about options, and yet this guy didn't even mention one single option on the car.
Also, this is just conjecture, but I have the feeling the owner is not willing to negotiate on the price if it's been up for so long.