I've seen it on a different vehicle and it looks nice, but it's dark like kona blue. I did not think it was purple. Go to a Ford dealer and see if they have any other cars that color and check it out. I think I saw it on an Edge.
I've seen the seats in person and there is no hole for the fifth belt if that's what your asking. FRPP will have the same wheels in black available and there are already shown in the 2011 catalog. Here's a link to the catalog:
http://bossmustangsonline.com/boss-302-technical-forum/ls-parts-available-from-ford-racing/
Here's a link to some photos I took of the silver LS.
http://s918.photobucket.com/albums/ad21/duffinator1/Mustang/
Here's a dose of reality... While I understand your frustration from Ford deleting YOUR favorite color it has nothing to do with Ford losing touch with their customers. The current Mustangs are the best they've ever produced and are truly a world class sports car. You don't get there because you've lost touch with your customer base. Ford's entire lineup is the best they've ever had and the best of any American car company. Ford is clearly focused on the end goal and I applaud them for what they've done over the past decade. And this from a person who hasn't owned a Ford in almost 15 years. But I've got one on order and am thinking of buying another.