And another real benefit to mitigating drive line induced noise and vibrations with a one piece shaft is the elimination of the center support bearing. That bearing is attached right to the uni-body sheet metal in the drive shaft tunnel. A very direct path for NVH to be transmitted into the cabin.
A good example of how the different materials transmit harmonics (vibration) would be to rap a steel drive shaft with a hammer. You get a pretty good ring. With an aluminum shaft, much less of a ring. With carbon fiber, none.
2012 GT Premium, Sterling Gray, 6MT, 3:73, Brembo Pkg, RR Sensing/Security Pkg, Comfort Pkg, Borla S.