My Z06 has carbon ceramic rotors and pads. They are magnificent, but expensive.
The rotors weigh approximately 10 pounds less than iron discs, possess incredibly stopping power with no fade, essentially no dust. They are good for the life of the car in street use.
Interestingly, one determines wear by weighing them. They do not lose thickness, but lose material internally.
Iron rotors wear proportionately to the kinetic energy the rotors absorb. Small, light applications with time to cool increases their life. Iron rotors wear quickly with hard, hot application.
Carbon rotors wear less when hot and with hard stops. Carbon fiber brakes wear proportionately to the total number of brake applications. Thus, a single hard application leads to less wear than several lighter applications. In addition, cold stops leads to more wear in carbon brakes. That is, they wear the least when hot and used hard.
What could be more perfect for racing?