I've been on Jaguar's website and otherwise searched the Intertubes trying to get a clear answer on what exactly the Portfolio package. I've viewed the Jaguar XF, used the vehicle comparison tool (useless), and checked out the brochure in PDF form. I've yet to see any explanation on what the XF Portfolio has that the base XF does not.
found this PDF describing the 2012 MY Changes to be most helpful. You can see specifically what is included with the Portfolio. Hope it helps and good luck. See pages 11 & 12. 2012MY XF US Product Brief 4_20_11.pdf