well if it makes you feel better I would feel much much safer in our Boxsters than an all carbon fiber tub on the open road. One Rennlister died a year ago in the CGT hitting the wall at Fontana. I'm not sure what the investigation by Porsche yielded, probably not very much because the families of deceased are now or were suing the last time I checked. What struck me at the time of the tragedy was that the CGT was designed to be an LMP racer, not a road car yet the drivers had no chance in a pretty straight forward high speed crash. I'm not a racing car designer but I think I've seen a dozen carbon fiber racing cars desintegrate and yet the driver just walked out with only a scratch.
I never really heard a detailed description of why the car wasn't redesigned once the LMP rules changed, instead Porsche just scrapped the whole racing project and put the cars on the road for $500K. And of course they recently pulled the plug on the Carrera GT altogether.