On July 19, in the 2024 “Lei Jun Annual Speech”, the official pictures of the Xiaomi SU7 Ultra prototype were officially released. It is reported that the Xiaomi SU7 Ultra prototype is equipped with two V8s motors and one V6s motor, with a maximum power of 1548 horsepower and an acceleration time of 0-100 kilometers per hour of 1.97 seconds. The car will challenge the non-mass production lap time list of the “Nürburgring” track in October this year, and the mass production car will officially challenge the mass production lap time list of the “Nürburgring” track in 2025.
The Xiaomi SU7 Ultra prototype is equipped with a large number of body sports kits, including a large spoiler, front lip, side skirts and rear diffuser, which show a stronger sense of sportiness as a whole. In terms of body size, the length, width and height of the car are 5260/2064/1406 mm respectively, and the wheelbase is 3000 mm.
In terms of power, the Xiaomi SU7 Ultra prototype is equipped with two V8s motors and one V6s motor, with a maximum power of 1,548 horsepower, an acceleration time of 0-100 km/h of 1.97 seconds, and a maximum speed of over 350 km/h. In addition, the car is equipped with a high-power battery pack specially designed for the track of CATL Kirin II.
It is reported that the V8s motor adopts a two-way full oil cooling and S-shaped three-dimensional oil circuit design. The stator part uses a double-circulation three-dimensional oil circuit to further increase the heat dissipation area; the rotor part uses an S-shaped oil circuit to increase the heat dissipation area simultaneously. In addition, the stator silicon steel laminations also adopt a “step-type” staggered design, which can increase the effective heat dissipation area by 7%.
For reference, the Xiaomi SU7 currently on sale offers single-motor and dual-motor models. The single-motor version (SU7 and SU7 Pro) has a maximum power of 200 kW and a maximum torque of 400 Nm for the rear motor, and provides 73.6 kWh and 94.3 kWh of lithium iron phosphate batteries, with corresponding CLTC pure electric ranges of 700 km and 830 km respectively; the dual-motor version (SU7 Max) has a total motor power of 495 kW and a maximum torque of 838 Nm, matched with a ternary lithium battery with a capacity of 101 kWh, and a CLTC pure electric range of 800 km. It is reported that the Xiaomi SU7’s external wake-up defense function will be launched soon, and the entire Xiaomi SU7 series is planned to be implemented through OTA upgrades in August 2024.
In terms of performance, the acceleration time of Xiaomi SU7 from 0 to 100 km/h is 5.28 seconds; the acceleration time of Xiaomi SU7 Pro from 0 to 100 km/h is 5.7 seconds; the acceleration time of Xiaomi SU7 Max from 0 to 100 km/h is 2.78 seconds.
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