Go for it. It's not permanent. The mylar or whatever the film is can be removed if you don't like it. Leave it on for at least a year. Once completed post a photo so Tinman can agree that it looks beautiful. I vote for gloss black to match the finish of the car. And when you do this, the hatch will really need some dark film too. Great looking car Kevin; I have always drooled over the C6 shape. I know what's coming - I did not drool on a C6.
... I just have not come to terms of owning one yet 