The Xiaomi SU7 (Chinese: 小米SU7; pinyin: Xiǎomǐ SU7, pronounced "/su/ seven" or /sutʃiː/s-oo-tch-ee in Chinese)[4][5] is a battery electricfull-sizesedan developed by Chinese company Xiaomi Auto, a subsidiary of the Chinese consumer electronics company Xiaomi. It is the first Xiaomi vehicle, and is manufactured under contract by BAIC Off-road in Beijing. It was announced in December 2023. The car was formally launched on 28 March 2024 in Beijing, with Xiaomi starting to take orders for the car on that day.[6]
According to Xiaomi, 'SU' stands for 'Speed Ultra',[7][8] and the number 7 indicates the car's market segment.[9][failed verification] 'SU' may also be a reference to the Chinese word 速 (pinyin: sù), meaning 'speed'. The SU7 is available in four versions, namely the SU7, SU7 Pro, SU7 Max and SU7 Ultra.[10]
History
Xiaomi announced its intent to enter the electric vehicle market in March 2021. Xiaomi Founder and CEO Lei Jun claimed the company would invest 10 billion yuan (US$1.4 billion) into the project. Xiaomi Automobile was established in 2021, based in the Beijing Economic and Technological Development Zone. The company received a permit to produce vehicles from China's National Development and Reform Commission in August 2023.[11][12]
Production of the SU7 started in December 2023. It was introduced on 28 December 2023.[13] The retail price is announced on 28 March 2024, which the standard version costs CNY 215,900 yuan (US$30,408).[14]
Design
The SU7 was developed under codename MS11.[15] The design team was led by chief designer Li Tianyuan, who was poached from BMW. According to Lei Jun, he rejected three design proposals due to durability concerns.[2] Xiaomi benchmarked the car against the Porsche Taycan and Tesla Model S.[16]
The sedan is equipped with air suspension with adaptive dampers, an active shutter grille and an active rear wing with four adjustment levels.[13] The company claims the drag coefficient of the SU7 is the world's lowest at 0.195.[16]
The SU7 is built on an 800-volt electrical architecture with a maximum of 871 volts. The company markets the electric motors used by the SU7 as the "HyperEngine V6 Series". The base SU7 with rear-wheel drive has a single motor with a power rating of 220 kW (299 PS; 295 hp) and 400 N⋅m (295 lb⋅ft; 41 kg⋅m). The all-wheel drive SU7 Max powertrain consists of a front motor outputting 220 kW (299 PS; 295 hp) and 338 N⋅m (249 lb⋅ft; 34 kg⋅m) and a rear motor generating 275 kW (374 PS; 369 hp) and 500 N⋅m (369 lb⋅ft; 51 kg⋅m) of torque, for a total of 495 kW (673 PS; 664 hp) and 838 N⋅m (618 lb⋅ft; 85 kg⋅m).
The SU7 Max uses a 101 kWh NMC battery which runs at 800V and is produced by CATL and branded as Qilin mounted in a cell-to-pack format. The base, rear-wheel drive SU7 uses a smaller 73.6 kWh LFP battery operating at 400V.[13] Xiaomi also plans to release versions with 132 kWh and 150 kWh batteries.[21][22] According to Xiaomi, the base SU7 is able to accelerate from 0–100 km/h (0–62 mph) in 5.28 seconds, while the SU7 Max goes from 0–100 km/h (0–62 mph) in 2.78 seconds.[23] Speed is limited to 210 km/h (130 mph) for the base model, and 265 km/h (165 mph) for the SU7 Max.[10]
SU7 Ultra
On October 29, 2024, Xiaomi announced the high-performance variant, the SU7 Ultra. The base trim would be priced at 814,900 yuan (114,200 USD) and would be officially released in March 2025. Xiaomi positions SU7 Ultra as a road-legal four-door racing car.[24][25]
The SU7 Ultra is powered by three electric motors developed by Xiaomi, two named HyperEngine V8s and one HyperEngine V6s, which reaches a combined power output of 1,138 kW (1,547 PS; 1,526 hp) and total torque of 1,770 N⋅m (1,305 lb⋅ft; 180 kg⋅m). The two V8s motors output 425 kW (578 PS; 570 hp) and 635 N⋅m (468 lb⋅ft; 65 kg⋅m) of torque each, and the V6s motor also found in the SU7 Max outputs 275 kW (374 PS; 369 hp) and 400 N⋅m (295 lb⋅ft; 41 kg⋅m) of torque. The HyperEngine V8s has a maximum speed of 27200rpm, while the V6s can go up to 21000rpm.
The SU7 Ultra can accelerate from 0 to 100 km/h (62 mph) in 1.98 seconds and from 0 to 200 km/h (124 mph) in 5.96 seconds, runs the 1/4 mile in 9.23 seconds, and has a top speed of 350 km/h (217 mph).[26] It is equipped with a carbon ceramic brake system, with 430 mm × 40 mm (16.9 in × 1.6 in) disks and six-piston Akebono calipers in the front, and 410 mm × 32 mm (16.1 in × 1.3 in) disks and four piston calipers in the rear, allowing for a 100–0 km/h (62–0 mph) stopping distance of 30.8 m (101 ft). The CATL Qilin II battery pack operates at 900V and has a maximum peak output 1330kW and 800kW at 20% charge, and can be charged at a rate up to 490 kW (5.2C).[27]
On October 28, 2024, the prototype of SU7 Ultra achieved a official lap speed record on the Nürburgring Nordschleife at 6:46.874, claiming as the fastest four-door car in history of Nürburgring.[28] The prototype has a carbon fiber body and has an unfinished interior, resulting in a weight of 1,900 kilograms (4,200 lb).
Xiaomi targeted 100,000 deliveries in 2024 and had 70,000 orders by April of 2024.[30] By mid-2024, Xiaomi became the 8th largest automotive startup in China, measured by sales quantity.[31][32]
