The Ultra version of the SU7 will be unveiled by Xiaomi on October 29 at their product launch event. Prior to that, Xiaomi CEO Lei Jun disclosed that the vehicle would have the biggest ceramic brakes ever seen on a sports car.
Lei Jun explained, “Xiaomi SU7 Ultra is equipped with competition-grade carbon ceramic brake discs, and the diameter of the carbon ceramic brake disc is currently the largest among sports car brake discs!”
The rear brake disc is somewhat smaller at 410 mm x 32 mm, while the front brake disc measures 430 mm x 40 mm. The ceramic brakes can withstand temperatures of up to 1300°C.
Racing cars and high-performance sports cars have been the main users of these brakes. Because of their strength, longevity, and resistance to high temperatures, ceramic brakes provide exceptional braking performance.
Materials made of carbon-ceramic can tolerate temperatures of exceeding 1000°C. Additionally, even under regular high-intensity braking circumstances, such those found on a track, they do not experience thermal damage from overheating.
Because they weigh less than half as much as conventional cast iron brake discs, they help lighten the vehicle and enhance handling. They are also perfect for long-term high-performance use because they last three to five times as long as steel brake discs and wear less. The expense of the materials and the intricate manufacturing process make them far more expensive.
Videos have shown the Xiaomi SU7 skidding off the track because of poor brake performance. With the performance-optimized Ultra version, this ought to be a thing of the past.
Goldman Sachs predicts that sales would reach 4,000 in 2025, with prices starting at over 800,000 yuan (112,250 USD).
Unlike the prototype, the Xiaomi SU7 Ultra will be able to be driven legally. The engine, which consists of three Xiaomi super motors—two V8s and one V6—is thought to be identical, though. These motors work together to provide a three-motor, four-wheel drive system that can produce up to 1138kW (1548PS) of power.
This should provide a top speed of over 350 km/h and an acceleration time of just 1.97 seconds from 0 to 100 km/h.
The Qilin 2.0 battery from CATL powers the 150 kWh battery pack of the Xiaomi SU7 Ultra. Xiaomi integrates the battery into the vehicle using a cell-to-body (CTB) structure, which increases stiffness and decreases weight. 1,330 kW is its maximum output. High-speed driving is made easier by its dual-surface cooking system, which boosts cooling efficiency by 60%.
