[masraum]

Originally Posted by Gus Berges

IOne thing is replacing PCCBs on a 958.1 Cayenne, another entirely different matter is replacing them on a Carrera GT.

Exactly. And if you can afford a CGT, I would think/hope you can or should be able to afford the maintenance on one.

I can also see someone looking at a vehicle and either 1 not thinking about the brakes or 2 thinking "cool, I'll have those cool PCCB," without considering the possible downsides.

I find it interesting that the correct method to determine the wear is by weight rather than the old fashioned method of measuring the thickness between the two brake surfaces.

Do these brakes lose mass without getting thinner? I'd love to have a better understanding of weight vs thickness as a measure of wear on these rotors.

My guess is that a lot of folks that say that the rotors are lifetime or last forever may be doing a "visual inspection". "Hey, those look a lot better than iron rotors usually look, so they must be fine." But if the correct method is to weigh them, then how they look is invalid. I suppose if there are also visual wear indicators, they may be looking at those, but a lot of folks think they know what's going on and talk like they do when they don't.

Fortunately, you've put in a lot of time researching and learning, and sharing your knowledge with us. Thank you