Earlier this week in Beijing, Xiaomi EV held what it says is one of its most important domestic launch events of the year, officially introducing SU7 Ultra to Mainland China. As the three-year-old company’s top-performance EV, the car based on the Max version of the SU7 is built to offer the ultimate driving experience, combining top-tier performance, technology, and handling, making it suited for both street and track driving.

It features the same triple-motor powertrain and track-edition high-power battery as the SU7 Ultra Prototype that set a record on October 28th. That run—supported by suppliers like Prodrive, Nexteer, Bilstein, Bosch, and CATL—completed a lap speed challenge on the Nürburgring Nordschleife with a time of 6’46”874, breaking the seven-year-old fastest four-door car lap record.

The Nordschleife is renowned worldwide for its extreme difficulty, complexity, and challenge, making it a dream venue for testing vehicle performance, tuning, and reliability among global car enthusiasts. Since 2014, only seven pure EVs have made it onto the Nürburgring list.

Xiaomi EV officially announced its intention to compete on the Nürburgring track in July, intending to become the “fastest four-door electric car at the Nürburgring within ten years.” The company’s challenge plan is divided into two phases: the first involves using a prototype car to challenge the non-production lap records at the Nürburgring as it has, while the second aims to use a production model to officially target production-car lap records at the Nürburgring in 2025.

To successfully tackle the Nürburgring, Xiaomi EV’s R&D team was stationed at the track, conducting extensive tests and product tuning upgrades. An advanced three-electric-motor system, chassis torque vector control, and aerodynamic design laid a solid foundation for establishing this new four-door car record. However, this is not the full potential of the SU7 Ultra Prototype.

With a maximum of 1548 PS (1139 kW), the consumer edition accelerates from 0 to 100 km/h (62 mph) in just 1.98 s (without a 1-ft rollout), and has a top speed is 350 km/h (217 mph), the company claiming that makes it the fastest four-door production car worldwide. It also accelerates from 0 to 200 km/h (124 mph) in only 5.86 s. It is equally adept at handling and stopping, featuring a racetrack-tuned chassis system and a braking system achieving 100-0 km/h braking in just 30.8 m (101 ft).

Building on SU7 Max, the Ultra adds an aerodynamic kit for an extended, lower profile, and a more aggressive stance, with slightly increased dimensions. The car is 5115 mm (201.4 in) long, 1970 mm (77.6 in) wide, and 1465 mm (57.7 in) tall, and a 3000-mm (118.1-in) wheelbase, so slightly bigger than the Lucid Air Sapphire, Porsche Taycan Turbo GT, and Tesla Model S Plaid competition.

In front, a large front splitter and air dam paired with U-shaped air blades boost downforce. A grille expansion increases the cooling area by 10%.

In the rear, an active diffuser with two adaptive settings balances aerodynamic drag and downforce, ensuring low energy consumption in regular driving. A fixed carbon-fiber rear wing, with a 1560-mm (61.4-in) width and 240-mm (9.4-in) chord length, provides significant downforce at high speeds.

The updates result in a maximum downforce of 285 kg (628 lb), which is said to be comparable to supercar-level performance.

The Ultra’s interior gets a sports car boost with an upgraded seat and steering wheel design. The new sports seats have enhanced and active side bolster support, providing faster response and more support for better body stability during intense driving. The steering wheel has a racing-style flat top and bottom design made with upgraded carbon fiber, is wrapped in Alcantara microfiber fabric for a better grip, and has a yellow center marker at the 12 o’clock position.

Alcantara microfiber fabric is used throughout the car, covering over 5m² including seat contact surfaces, dashboard, and the interior door panels, to deliver a premium feel and a more immersive driving environment.

The updates are paired with yellow seatbelts and a red Boost button on the steering wheel.

Carbon-fiber materials are featured extensively to enhance sportiness and reduce weight, appearing in 17 locations and totaling 3.74 m²—with 90% of the components manufactured using a premium hot press process to ensure good texture and quality. Interior elements include the front-seat back panels, center console panel, and door sill plates. On the exterior, the 1.7-m² carbon fiber roof reduces mass by 12 kg.

The Ultra’s triple-motor powertrain features one 392-PS V6s motor (electric, not ICE) and marks the debut of Xiaomi’s self-developed 578-PS V8s super motor in production vehicles. The V8s revs to a maximum of 27,200 rpm and is currently the highest and most powerful production main drive motor, according to the company. Xiaomi EV says it is committed to research, development, and innovation, with 242 patents filed in electric motors and electric power control units.

The torque of the three e-motors is independently and dynamically distributed, with torque adjusted at 500 times per second to enhance vehicle handling and stability. This torque-vectoring control system is designed in accordance with the industry’s highest ASIL-D functional safety standard, and the fastest fault-coordinated shutdown time is only 14 ms to ensure vehicle safety.

The production Ultra features the same track-optimized, high-power battery pack as the prototype car, debuting CATL’s Qilin 2.0 battery. Integrating Xiaomi’s CTB battery technology for higher volume efficiency, the battery pack features dual large-surface active cooling to ensure stronger battery heat dissipation capabilities and safety.

As one of the most powerful mass-produced battery packs available, it delivers a maximum discharge rate of 16C and a maximum discharge power of 1330 kW. At a 20% state of charge, discharge power can still reach up to 800 kW. The highest charging rate is 5.2C, enabling 10% to 80% charging in just 11 min. The CLTC range is 630 km.

The Ultra has large racing-grade carbon ceramic brake discs with 430-mm fronts, said to be the largest on a sedan. Compared with ordinary steel brake discs, carbon ceramic discs are more heat-resistant, wear-resistant, and lighter. Maximum operating temperature is more than 1300°C, more than twice that of steel brake discs, service life exceeds 500,000 km, and their fitment reduces vehicle weight by 57 kg. The system is equipped with Akebono high-performance fixed brake calipers, with six pistons in front and four pistons in the rear.

The Ultra’s suspension uses dual-chamber air springs and high-performance continuous damping control, providing a larger spring stiffness and damping adjustment range, making the standard mode more comfortable and the sports mode sportier. It also provides track enthusiasts with a professional-grade Bilstein EVO T1 coilover shock absorber kit, with a maximum spring stiffness of 300 N/mm and a maximum damping force of 9000 N. With 10 levels of compression and rebound damping adjustment, it comprehensively enhances the upper limit of control during acceleration, braking, and cornering, providing support when cornering on the track.

Along with the performance and chassis upgrades, the Ultra offers a new visual and auditory experience as well as exclusive apps designed for racetracks. The user interface on the central control screen, instrument panel, and headup display is meant to enhance the sporty atmosphere. The audio experience gets three new profiles—Ultra Electric, Ultra Sonic, and Ultra Pulse—along with a 40-W external speaker for enhanced sound projection.

Xiaomi SU7 Ultra is now available for pre-order, with an official release scheduled for March 2025. The pre-order price is 814,900 yuan, with a 10,000-yuan intention deposit required.