I was able to purchase mine at invoice due to my company's affiliation with the automotive industry. They call it the S-Plan.
I ended up getting the showroom car that had a 6 speed manual transmission, the Grand Touring Package, rear wing spoiler, 6CD changer, appearance package, and rotary accent package. It came with tinted windows.
The one option that I did not get was the navigation system. This particular model did not have it, but did have all other options I wanted. I really wish I had it because I love gadgets, but it certainly isn't necessary.
The one thing I would change with the car would be the color. I got the black which is gorgeous, but difficult to keep up. I would go with the nordic green.