The BYD Yangwang U9 Xtreme has officially claimed the title of the world's fastest production car. On 14 September 2025, at Germany's ATP Automotive Testing Papenburg, the electric supercar clocked a staggering top speed of 496.22 km/h, outpacing the previous benchmark set by the Bugatti Chiron Super Sport 300+, which topped out at 490.4 km/h.
Originally known as the U9 Track/Special Edition, and now officially confirmed as the Yangwang U9 Xtreme in production guise, or U9X for short, the fastest car on the planet takes the existing technical architecture of the U9 currently on sale in China.
It features a powertrain with 1200V ultra-high-voltage electrics (compared with 800V), a lithium iron phosphate Blade Battery with a remarkable discharge rate of 30C, four ultra-high-speed motors that operate at up to 30,000rpm and produce a total of more than 3,000PS (2,958 hp), track-level semi-slick tyres, and revised DiSus-X suspension with specific tuning to cope with the increased stresses of circuit driving.
Yangwang U9
The brand revealed that the Yangwang U9 Xtreme is now being made available to customers, with a limited series production run of no more than 30 units. With this record, BYD has raised the bar for the EV of its segment, beating the Rimac Nevera, previously the leading electric benchmark, with a top speed of 415 km/h.
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