I can understand your fears. I have my own with the same interior. I would think that a change in your order would be OK, but having said that it really depends on where your order is in GM's system. You really need to check with your dealer to get his guidance. As for "other" color possibilities, I think zimm888 (IMO) has offered up a good option for the Cyber Gray exterior, but I am not sure it would look good with red. There are several pictures on the Brownstone Int. in the "Lime Rock Green At Last" thread. The problem is that this is a picture too that may or may not look the same "in person". Good luck!