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The Yangwang U9 Xtreme reached 503.17 kph (312.6 mph) on a closed road in Abu Dhabi on November 1, according to InsideEVs. Guinness World Records and the FIA recognized the single-direction run, but it was not the conventional two-way record format, leaving the basis for comparisons with other top-speed claims open to challenge.
BYD’s Yangwang U9 Xtreme reached 503.17 kph (312.6 mph) on a closed public-road stretch in Abu Dhabi on November 1, according to InsideEVs, setting a production-car speed mark recognized by Guinness World Records and the FIA. The run also made the electric hypercar the first production car to exceed 500 kph (310 mph), although it was recorded in one direction rather than through the usual paired runs in opposite directions.
The record attempt took place on a roughly 10-kilometer (6.2-mile) section of the E11 road in Abu Dhabi’s Al Dhafra Region, which was closed to public traffic. German racing driver Marc Basseng, who drove the U9 Xtreme during its earlier speed attempt, was behind the wheel again. According to InsideEVs, he made four runs over two days.
The first two runs, on October 31, topped out at 490 kph (304.4 mph). Engineers then adjusted the car’s aerodynamics, suspension settings and tire pressures. A Racelogic recorder logged the final run at 503.17 kph on the second day. Guinness listed the achievement as the highest speed by a production car and by an electric production car in a single-direction run; the FIA also confirmed the achievement on its website, InsideEVs reported.
The new figure exceeds the car’s reported 496.22 kph (308.3 mph) run in September 2025. The U9 Xtreme is the highest-performance version of BYD’s U9 electric supercar, and the company plans to produce 30 units, according to the report. Its four electric motors produce a combined 2,977 horsepower, while its equipment includes a 1,200-volt lithium iron phosphate battery pack and semi-slick tires.
A New Benchmark for Electric Speed
Exceeding 500 kph in a production car is a major speed milestone, and doing so with an electric vehicle adds a notable data point to competition among high-performance carmakers. The result places BYD, a Chinese automaker, at the center of a record category often associated with specialist manufacturers such as Bugatti, Koenigsegg and Rimac.
The qualification matters: this was a single-direction run, not a two-way average. Opposite-direction runs can help account for wind and elevation differences, so the format affects how directly the result can be compared with records set under other rules. Recognition by Guinness and the FIA gives the attempt formal standing in the categories they listed, but does not erase that methodological distinction.
The car’s planned production run of 30 examples also narrows what “production car” means in practice. It is not a mass-market vehicle, and a record at this speed does not establish how the car performs in ordinary driving or under different conditions. Still, the attempt shows how far a limited-production electric hypercar can be pushed in a controlled, closed-road setting.
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From 496 to 503 Kph
The U9 Xtreme had already reached a reported 496.22 kph in September 2025, before BYD set its sights on crossing the 500-kph threshold. InsideEVs says the earlier attempt also used Basseng as driver. The latest run added just under seven kph to that result and moved the car beyond the threshold no production car had previously crossed, according to the report.
The Abu Dhabi attempt was made on a closed stretch of the E11, rather than in ordinary traffic. After the first day’s runs fell short of the target, engineers changed several settings before the final attempt. The report identifies aerodynamics, suspension and tire pressure as areas adjusted, but does not provide detailed measurements of those changes or the conditions during the record run.
InsideEVs reports that the Xtreme combines four motors, a total output of 2,977 horsepower, and a 1,200-volt LFP battery pack. Those specifications describe the model, but the reported speed is the result of a particular test on a closed road; it should not be read as a typical operating speed.
“The Yangwang U9 Xtreme holds the records for the highest speed achieved by a production car and an electric production car in a single-direction run.”
— Guinness World Records, as reported by InsideEVs
How the One-Way Run Compares
The central open issue is how the single-direction result will be treated alongside top-speed records based on runs in both directions. A two-way format can reduce the influence of wind or elevation, while this attempt’s official category specifically refers to a single-direction run. The source report says rival manufacturers could challenge the result, but it does not identify a formal challenge or provide a response from Bugatti, Koenigsegg or Rimac.
The available report also does not give a detailed account of weather, road gradient, timing procedures beyond the named Racelogic recorder, or the full rules applied by each organization. Guinness and the FIA are reported to have recognized the achievement; the exact scope of that recognition should not be confused with a universal agreement on how all production-car speed records must be measured.
It is also unclear whether BYD intends to make another attempt, whether other manufacturers will respond with their own runs, or when the planned 30 cars will be delivered. The record does not establish a top speed for customer cars in routine use.
Challenges and Follow-Up Runs
The immediate next development to watch is whether another manufacturer or record body contests the result or attempts to set a competing mark. A two-way run, if undertaken, could provide a more directly comparable measure under a different record format. No such follow-up attempt or challenge is confirmed in the source material.
BYD’s production plans are another point to watch: the company is reported to intend to build 30 U9 Xtreme units, but the report does not give a delivery schedule or say whether the recorded car matches the final customer specification in every detail. Further information from BYD, Guinness or the FIA could clarify the test protocol and the precise basis for comparisons with other speed records.
Key Questions
How fast did the Yangwang U9 Xtreme go?
It recorded 503.17 kph (312.6 mph) on a closed road in Abu Dhabi on November 1, according to InsideEVs.
Was the record run made in both directions?
No. The reported record was a single-direction run. Guinness’ listed category, as reported by InsideEVs, specifies a single-direction achievement.
Who drove the car?
German racing driver Marc Basseng drove the U9 Xtreme during the attempt, according to the report.
How many Yangwang U9 Xtreme cars will BYD build?
BYD plans to produce 30 units, according to InsideEVs. The report does not specify a delivery timetable.
Could another automaker challenge the result?
The one-way format could prompt questions about comparisons with records set using two runs in opposite directions. The source report mentions the possibility of a challenge, but does not report that a formal challenge has been filed.
Source: insideevs.com
