BYD's Yangwang U9 Xtreme dethrones Bugatti Chiron Super Sport to become world's fastest production car
Published on Sep 22, 2025 at 2:29 PM (UTC+4)
by Daisy Edwards
Last updated on Sep 22, 2025 at 2:59 PM (UTC+4)
Edited by
Emma Matthews
BYD’s Yangwang U9 Xtreme dethrones Bugatti Chiron Super Sport to become the world’s fastest production car when it hit truly mind-boggling speeds in testing.
It’s a record that was previously held by the Bugatti Chiron Super Sport 300+, which managed a very impressive 304.77mph, so the fact that, during testing, its record was usurped is incredibly impressive.
The U9 Xtreme has been unleashed on the world with a quad-motor setup – it has one motor per wheel, which helps push its insane performance.
Most EVs run on a standard 800-volt electrical architecture, but the new hypercar is a huge jump, running on a whopping 1,200 volts.
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BYD’s Yangwang U9 Xtreme has become world’s fastest production car
When you see how quickly supercars are developing, it’s genuinely impressive when a record is broken, especially one that’s very well-known.
It seems that, finally, the domination of the Bugatti Chiron Super Sport is over, with the Chinese EV automaker BYD’s Yangwang U9 Xtreme steaming in and stealing the top spot.
The Chiron previously held the record at a top speed of 304.77mph, meaning that now the crown of the world’s fastest production car goes to the Yangwang U9 Xtreme.
Despite some controversy about how top speed runs are an extreme one-directional example of driving in ideal conditions, and not reflective of typical driving reality, the Chiron’s domination has been usurped.
Move over Bugatti Chiron Super Sport
The new BYD EV is not a light vehicle, weighing in at a significant 2,480kg, a hefty mass that can hit incredibly high speeds.
In testing, the Yangwang Xtreme hit high speeds of 308.33mph, making the most of its quad motor setup, which is one motor per wheel, alongside the 1,200-volt electrical architecture.
Most EVs run on a standard 800-volt system, so this is a truly spectacular piece of engineering on top of being the fastest in the world.
This is a major milestone for not only BYD, but EVs in general, as it seems crazy for an EV to displace an internal combustion engine-powered beast.
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Daisy Edwards is a Content Writer at supercarblondie.com. Daisy has more than five years’ experience as a qualified journalist, having graduated with a History and Journalism degree from Goldsmiths, University of London and a dissertation in vintage electric vehicles. Daisy specializes in writing about cars, EVs, tech and luxury lifestyle. When she's not writing, she's at a country music concert or working on one of her many unfinished craft projects.
