Most modern sports cars with proper brake fluid (higher boiling point) and some heat management have no problems with brake fade in steel discs. Many that track

Most modern sports cars with proper brake fluid (higher boiling point) and some heat management have no problems with brake fade in steel discs. Many that track their GT3 / GT3 RS (Porsche 911) prefer steel discs due to the maintenance cost of carbon ceramic and properly designed steel discs perform just the same as carbon ceramics because the brake fade isn’t a big problem, even in a pretty extreme application like this. Not sure if the Rimac really needs anything otherwise as well. Plus, it has regen braking and a crazy cooling system to help there. Parents math was off about the amount of energy also. My car has carbon ceramic brakes (GT3). Two reasons: don’t need to be warmed up for full stopping power and way less brake dust. That is the only advantages in practice. On the track warming the brakes up is easy.