BYD’s luxury sub-brand, YANGWANG, has officially rewritten the record books after its latest hypercar, the U9 Xtreme, clocked a staggering 496.22km/h at the ATP Automotive Testing Papenburg circuit in Germany. The run, which took place on 14 September 2025, not only smashed the previous EV record but also overtook the fastest petrol-powered car on record, making it the quickest production vehicle in the world.
The U9 Xtreme, or U9X as it is now officially called, began life as the U9 Track/Special Edition before being refined into a road-going production model. It builds on the foundations of the regular U9 already sold in China, but with significant upgrades that push the limits of what an electric hypercar can do.
Among the highlights is a new 1200V ultra-high-voltage system (up from the U9’s 800V setup), a lithium iron phosphate Blade Battery capable of delivering an extraordinary 30C discharge rate, and four ultra-high-speed motors that spin up to 30,000rpm, generating more than 3,000PS in total. The package is completed with track-focused semi-slick tyres and a recalibrated DiSus-X suspension system, tuned specifically for the brutal forces of high-speed circuit driving.






