Do the CF interior door panels result in weight reduction? I doubt they do...What type of material are they replacing exactly? Plastic? If there are no weight savings, I agree with Swamp.
The hood is over the top. Isn't it aluminum to begin with?
If they started replacing some steel parts with CF parts, I'd start seeing the benefit, but most steel parts in the car are probably steel for structural reasons, and it would be expensive to make CF replacement parts that can handle the stresses. I think the external door panels are steel, so there might an opportunity to save some weight there, but then you'd need to paint them and all that. (The external steel door panels should not provide any significant structure in a crash by the way. There are beams within the door that do that.) If I remember correctly the fenders are plastic?