Not Ranked
The Cobra body shape doesn't lend itself to exotic materials. There are too many compound curves. In order to fully take advantage of graphite's stiffness, you really need matched dies or vacuum-bagging, neither of which is practical with a one-piece (wrap-around) body. Graphite's great on easier shapes where you can use a low resin-to-reinforcement ratio, but more complex shapes are very difficult. Not to mention, figure roughly $40/lb for materials when properly laid up with epoxy.
The bottom line is you don't gain much except for the status.
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