[Crazy1323]

Originally Posted by Alan l.

For the G90 and F90 are CCB rotors bigger than the steels?

I’m not sure about the F90, but on the G90/G99 the front rotors are 10mm bigger with ceramics (16.1” for steel and 16.5” for CCB). I believe the rears rotors and calipers are the same size. The calipers are probably identical other than different seals to handle higher temperatures.

[M3PGH]

CCB are nice to have but not essential
I had multiple cars with CCB including Porsche GT cars , Audi , MB and BMW
BMW CCB are the most impressive overall
I would have predicted Porsche will be the best
I am splitting hair as they are all great

[AHall]

Originally Posted by timecurve

$30K to replace! Is this for both rotors and pads? You mentioned that CCB's can last a while, potentially a 100K miles. Is this for both rotors and pads, or pads need to be replaced more often?

$30k brake job would be crazy on a 100k mile car. I mean what would you do with the car. What would a 100k mile car be worth?

[Crazy1323]

Originally Posted by AHall

$30k brake job would be crazy on a 100k mile car. I mean what would you do with the car. What would a 100k mile car be worth?

At that point a lot of people replace ceramics with steel purely for cost. The second/third owner doesn’t want to pay those costs.

My strategy is to never own a vehicle when the ceramic brakes wear out so it is not a problem