Because the S660 STD brake disc adopts solid discs, it is inevitable that the brake temperature will rise excessively in sports driving even though it is a mini car with a light weight. Therefore, we have newly developed a dedicated ventilated disk to fully demonstrate the performance of S660 FULL monocoque calipers. By adopting an ideal ventilator with a disk diameter of 260 ? and a thickness of 17 mm, we succeeded in dramatically improving brake cooling efficiency in sports driving and sustaining a stable brake feel. Two rotors required