it's 8% of the cars value on some thing that will not stop you any faster though.
No one will notice the weight saving or ride esp on a PASM car.
People have to understand how well braked the GT4 is with the steel set up from the GT3.
PCCB have to be 15% larger just to match the steel performance, and weights quoted ARE ALWAYS like for like sizes.
Again a 981 Spyder driver should have speced PCCB, they would see a performance advantage.
A £250k super car the CCM are a smaller % of the value of the whole car.
Also race cars DO NOT USE carbon ceramic disks !! a race car uses the much better performing carbon carbon disk and people seem to quote all that wrong and that disk wears out but performs far better and can take heat !
There is a lot to all these systems, but people need to go in eyes open, I am a 987.2 PCCB fanboy because the 4 pot 330mm set up is pants on 987.2 cars and not much better on the 981 cars.
I have also just done a track day and some one came in with 410MM PCCB RS and they were smoking like hell, this is what kills the disks people want prolonged use but track use on CCB tends to oxidize the disks due to being out longer and not looking after them, and at £5k a pop it's an expensive lesson, as you don't see fade PEOPLE DO STAY OUT LONGER !!! even Chris W says he likes to stay out for longer stints ! and he wore his Cayman R CCB out !
ALSO torque vectoring brakes rear wheels, so you cannot manage the heat really as the car is braking for YOU ;-(.
Then you have to look at heat, CCB run hotter for the pads due to mass etc hot means hotter every thing which runs close to it, like tyres and brake fluid, tyre temps are already hard to keep in spec, CUP 2's don't want to run too hot or high PSI, they go all greasy. again with fluid, you have more chance or over heating your brake fluid also, so again that = more changes.
And last due to heat killing CCB disks you have to manage your pad, as pad wear is hugh on a PCCB set up as the disk is designed to wear the pads out NOT the disk (a CCB is very very hard) (hence a disk should last a life time for normal road use).
this means changing pads ONLY 1/2 worn and you will be in for a shock come pad replacement costs with the massive pad size the GT4 has for PCCB pads. (I bet it's >£800 a set may be a lot lot more)
SO for any other Cayman or Boxster model ever made in the last 10 years YOU WOULD see a PCCB advantage, but the GT4 IS THE 1ST Cayman/Boxster to have a Big brake set up taken from the 100kg more GT3 RS !
It will match the PCCB GT4 set up you only have to do the maths on mass a disk sizes to see that.
CCB look cool as though, and make less dust (you do get dust as the pads wears, but it's far less than a steel set up)
As I have said no right and wrong on what any one wants, but you have to know what you are buying into, I have seem many a GT3 and even a few turbos who have done track days and there CCB are totally worn out (well not worn out but oxidized and falling apart)
I must see a PCCB car on every track day with smoking brakes in the pits ! and if you have caused that much heat your fluids had it.
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