[asshanson]

Weight depends on the type of carbon fiber. The nice woven sheets with shiny epoxy that look pretty (wet) weigh a lot more than dry carbon pieces that would normally be painted. I think dry is like half the weight of wet cf.

Both are still lighter than fiberglass. Each piece will differ based on thickness, etc. For one example, on the lotus the front of the car is one giant piece of fiberglass. A carbon equivalent is about one third the weight.