I'm getting close to ordering my C7 but, for the life of me, I can't make heads nor tails out of the different options for the roof. I want the roof to be the same color as the body. I'd like it removable (are they all removable?) Dual vs Single panel? Carbon Fiber - what's that all about? I don't have the luxury of seeing examples up close and personal as I'm currently deployed to Afghanistan. Can anyone help a brother out?