A carbon fiber hood I can see, but like I said, carbon fiber fenders? Like everyone said, there is not much weight savings, escpecially for the price you pay for them. I had to replace my fendersbecause when I bought the car, the steel ones were in bad shape and would have cost more to fix than they were worth - so I went with the Z3 fiberglass ones. Unfortunately, they did not fit that well when I first put them on the car. I had to do a lot of cutting and grinding to make them fit. The Z3 fenders look awesome as long as you follow a theme with the car. When my ride is painted and my new wheels are on, you will see what I mean. Though, if I had to do it again, I would probably just go back with steel fenders due to amount of work to make the fiberglass ones work. Just my thoughts.....