The achievement sets a new benchmark for pure electric vehicles and surpasses records held by XPeng and Xiaomi’s own YU7. Xiaomi Auto announced on January 19 that the next-generation SU7 Max achieved a distance of 4,264 km in a 24-hour endurance challenge. The result surpasses Xiaomi YU7’s previous mark of 3,944 km and breaks the pure-electric endurance record of 3,961 km previously held by the XPeng P7. The test was conducted at a CATARC-owned proving ground on a 7.8 km high-speed oval track. The next-gen SU7 Max achieved a distance of 4,264 km in a 24-hour endurance test According to Xiaomi, the vehicle ran continuously for 24 hours, including charging time, simulating extreme operating conditions described as “running a marathon at sprint speed.” For EVs, such a test not only measures sustained high-speed capability but also validates the stability and durability of the core electric systems, including battery performance under high load, continuous motor output, and charging efficiency. From a technical perspective, the SU7 Max’s performance is closely tied to upgrades to its high-voltage architecture. According to an earlier report by ChinaEV Home, the next-generation SU7 Standard and Pro models have been upgraded to a 752V silicon carbide high-voltage platform, while the Max version adopts a higher 897V architecture. The next-gen SU7 Max achieved a distance of 4,264 km in a 24-hour endurance test Maintaining a constant speed of 240 km/h throughout the test was supported by the adoption of the V6s Plus electric motor across the lineup. The motor’s maximum speed has been raised to 22,000 rpm, enabling a top vehicle speed of 265 km/h. Overall CLTC efficiency has improved by 1.5%, with the Max version delivering an additional 13 kW of power. The high-voltage platform also delivers gains in both driving range and charging performance. The SU7 Max is equipped with a 101.7 kWh ternary lithium battery pack, providing a CLTC-rated range of 835 km. In terms of charging efficiency, the Max version can add about 670 km of CLTC range in 15 minutes under fast-charging conditions. On the safety front, the next-generation SU7 comes standard with a 2,200 MPa integrated anti-roll structure, a 1,500 MPa underbody crossbeam, and a protective underbody coating. The vehicle is equipped with nine airbags, including two newly added rear side airbags. According to Xiaomi, the next-generation SU7 is scheduled to launch in April 2026 and is now available for pre-orders. The SU7 Max has a pre-sale price of RMB 309,900 ($44,470).