I'm planning on going to see a dealer about ordering an 06 GT (coupe or vert, depends on price), and I was wondering what the prices would be. The options I would want would be the interior upgrade, Shaker 500 (possibly), and side curtain airbags. It would have to be the deluxe; I don't care for leather. Also, I read a post on here referring to the calculation of x-plan pricing, and a number of opinions were given, so I went to the Ford Partner website, and it said .4% below invoice. Is that true?