BYD’s electric hypercar hits 312 mph, first production car over 500 km/h

BYD’s Yangwang U9 Xtreme set a claimed production-car speed record in Abu Dhabi. Driven by Marc Basseng, it reached 503.17 km/h, or 312.66 mph, on a closed section of the Sheikh Khalifa Bin Zayed International Road. The run made it the first production car to pass 500 km/h.

The attempt used a 10 km road closure, including a 7 km straight. Basseng reached 490 km/h on the first day. After changes to the rear wing, damping, and tire pressures, he reached the final speed on November 1. FIA and Guinness World Records recognized the run.

The result matters because it is electric and production-based, not merely a prototype demonstration. However, it was a single-direction run. Traditional top-speed records usually average runs in both directions, so the achievement is spectacular but still carries an important qualification.

A production car is a vehicle manufactured for customers rather than built solely as a prototype or engineering test. The classification matters because manufacturers can achieve extreme speeds with highly specialized one-off machines. Calling the U9 Xtreme a production car suggests its record-setting design is connected to a limited customer model.

BYD plans to build 30 U9 Xtremes and charge around $3 million each. The car is a track-focused version of the Yangwang U9, using four electric motors, a 1,200-volt system, and a track-grade Blade Battery. Those details connect the record to a vehicle intended for limited production.

The classification does not automatically settle every debate. The run used bespoke semi-slick tires, and the article says it is unclear whether customer cars will receive them. The attempt was also single-direction, unlike traditional two-way records. Production status therefore matters, but the conditions still need careful scrutiny.

The new run pushed the U9 Xtreme into a different speed bracket. Its 503.17 km/h result was 6.95 km/h faster than its previous 496.22 km/h record from September 2025. That earlier run had already moved the car beyond the Bugatti Chiron Super Sport 300+ and its 490.48 km/h result from 2019.

The comparison with the Rimac Nevera R is even larger. The Rimac’s listed top speed is 431.45 km/h, leaving it 71.72 km/h behind the U9 Xtreme’s Abu Dhabi result. These figures place BYD’s electric hypercar well ahead of the electric benchmark mentioned in the article.

The numbers are not perfectly equivalent in record terms. The U9 Xtreme’s run was one-way, while traditional production-car records average opposite-direction runs. Even so, the progression from 496 to 503 km/h shows a major increase, and the performance exceeds both named rivals’ figures.

At more than 490 km/h, small setup differences can strongly affect stability, tire loading, and traction. The team changed the rear wing, damping, and tire pressures after the first day because Basseng had reached 490 km/h but had not achieved the target record. The adjustments were a way to refine how the car behaved at speed.

The rear wing influences aerodynamic force and stability. Damping controls how the suspension responds to bumps and weight movement. Tire pressures affect the tire’s shape, contact patch, and behavior under enormous loads. Together, these settings help the car remain controllable while its four motors deliver extreme power.

The changes worked in the immediate test. On the second attempt, on November 1, Basseng reached 503.17 km/h. The article does not identify the individual contribution of each adjustment, so it is safest to view them as a combined setup change rather than crediting one component alone.

A single-direction speed run measures how fast a car travels with the conditions it encounters on that trip. Wind can push the car or slow it down, while a small road gradient can help or hurt its speed. Because those effects are not canceled, one-way results can look faster or slower than the car’s balanced performance.

Traditional production-car records therefore average two runs in opposite directions, completed within an hour. The car travels with and against the prevailing wind, and any road-grade effect is partly balanced. The article gives Koenigsegg’s 447.19 km/h Agera RS record as an example of this approach.

The U9 Xtreme’s 503.17 km/h run was recognized by FIA and Guinness, but both listed Guinness titles specify “single direction.” That makes it an important demonstration, especially for an electric car, but less definitive than a comparable two-way average. The article says Koenigsegg and Bugatti could still answer with a two-way 500 km/h run.

The U9 Xtreme’s four electric motors give it multiple sources of drive and allow the system to manage power across the car’s wheels. The article rates each motor at 555 kW, with a combined output of 2,220 kW. That enormous output provides the acceleration and sustained force required at extreme speed.

More than 3,000 PS describes the car’s total power capability. Power is what helps the car continue pushing against aerodynamic drag as speed rises. The 1,200-volt architecture is the electrical framework that carries energy from the battery to the motors. For a given power level, higher voltage can mean lower current, helping limit electrical losses and component strain.

BYD pairs the system with a track-grade Blade Battery using LFP cells. The car’s record shows that this combination can support extreme performance. However, the article also highlights the usual concern that batteries and motors must avoid overheating during high-speed operation.

Extreme speed creates several linked engineering problems. Aerodynamic drag rises sharply with speed, so the car needs enormous power just to keep accelerating. The body and rear wing must also generate stability without creating so much drag that the motors cannot overcome it. Small bumps can become serious when the car is traveling above 500 km/h.

The tires must remain stable under huge rotational and aerodynamic loads. The U9 Xtreme used bespoke semi-slick tires developed with Giti Tire, while the team adjusted tire pressures before the record attempt. Its battery and motors must deliver sustained output, not only a brief burst. The 1,200-volt system helps move that energy efficiently, but heat remains a major challenge.

The article notes the old assumption that electric cars would overheat before reaching such speeds. BYD’s run challenges that view, using LFP cells in a track-grade Blade Battery. Still, the article does not provide detailed cooling figures or temperatures, so the full thermal strategy remains unspecified.

The U9 Xtreme’s 503.17 km/h run changes the conversation around electric and combustion-powered hypercars. BYD’s car is electric, yet it exceeded the Bugatti Chiron Super Sport 300+ result of 490.48 km/h and the Rimac Nevera R’s 431.45 km/h top speed. It shows that electric propulsion can support extraordinary top-end performance.

The car uses four motors, 2,220 kW, a 1,200-volt system, and a track-grade LFP battery. Those figures challenge the older belief that electric batteries and motors would overheat before a car reached extreme speed. The U9 Xtreme also holds the production EV lap record at the Nürburgring Nordschleife.

The record may encourage combustion-powered rivals to respond. Koenigsegg says its Jesko Absolut can theoretically reach 500 km/h, but it has not attempted the run. The key next step is a two-way attempt, because BYD’s one-direction result is impressive but not fully comparable with traditional records.