Quote:
Originally Posted by dimabimmer
I agree with swamp2, but my reasoning was,- knowing upon learning how hard it is to build CF parts, eapecially edge lines are the most difficult to produce... all points out to the hood on the M4 to be made of CF.
It has been said, BMW M is going the route of weight reduction, so CF Hood would be logical... but then I wonder,- how much lighter CF Hood would be than the Aluminum one?
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Your post is very unclear...
But anyway, the amount that could be saved by going from aluminum to CF would probably be right about 7 lb. That is based on a very rough "back of the envelope" design rule that the weight ratio of a steel:aluminum:carbon fiber structural part is about 6:3:2 (or 1:1/2:1/3). The existing all aluminum hood only weighs 22 lb! It will be an very expensive 7 lb if BMW does so. I think we'll see a CF trunk since it would be replacing a steel part but it will likely maintain the aluminum hood.