BYD’s Yangwang U9 Xtreme lost control during a closed-course speed record attempt, struck a guardrail, and spun across the track. The driver escaped without serious injuries.
The Yangwang U9 Xtreme is a quad-motor electric hypercar developed under BYD’s luxury Yangwang brand, one of several sub-brands the Chinese electric vehicles giant has established to compete at the premium end of the global market. Its powertrain is rated at nearly 3,000 hp, placing it among the most powerful production-intended electric vehicles publicly documented.
The test session progressed in stages. An initial run exceeded 350 km/h (217 mph), followed by a second run above 420 km/h (261 mph). The crash occurred during an attempt to push past 450 km/h, approximately 280 mph, according to Electrek.
BYD released footage attributed to the company’s official Weibo account, per multiple reports. The footage shows the vehicle losing control, striking a guardrail, and continuing to spin after the initial impact; the direct post URL was not available in published reporting. Electrek and Yahoo Autos describe significant damage to the front and rear sections of the vehicle. The central carbon-fiber passenger cell remained comparatively intact.
According to reporting by Electrek and Yahoo Autos, BYD said the driver underwent a comprehensive medical examination and was found in good health without serious injuries. That outcome is consistent with the intended function of a rigid carbon-fiber safety cell, though one incident on a closed course cannot independently validate the vehicle’s complete safety performance.
No battery fire was reported or visibly shown in the available coverage. The full condition of the battery pack and post-crash systems has not been established in available reporting, and BYD has not released a detailed post-incident technical assessment.
Testing resumed after the crash. A subsequent run recorded 457.89 km/h (284.5 mph), according to Electrek. BYD’s stated goal remains breaking the 500 km/h barrier, roughly 311 mph. The company’s verified production-car record stands at 496.22 km/h (308.3 mph), set at the ATP Automotive Testing Papenburg circuit in Germany on September 14, 2025.
No definitive cause of the loss of control has been identified in available reporting. The incident illustrates the forces involved when a vehicle near 450 km/h encounters any deviation in grip, stability, or steering. Small margins at those speeds can produce rapid and catastrophic results. The testing took place on a closed circuit under controlled conditions, and the record attempt does not establish that driving at comparable speeds is safe or appropriate on public roads.
