# BYD Yangwang U9 Xtreme sets 503.17 km/h production car speed record

- Published: 2026-11-06 20:12 UTC
- Section: Power & Energy › Cars
- Tags: BYD Yangwang U9 Xtreme, electric hypercar record, 500 km h electric car, FIA Guinness speed record, LFP battery supercar
- URL: https://realtech.media/news/rt-640ded3a693b9e5c24f815f5_byd_yangwang_u9/

**The electric hypercar reached 503.17 km/h during a single-direction run on a closed highway in Abu Dhabi.**

![BYD Yangwang U9 Xtreme sets 503.17 km/h production car speed record](https://sgzwpqqelzmajkcubgkl.supabase.co/storage/v1/object/public/rt-media/2026/11/8080e9a43aec14ec.webp)
*electrek.co*

The track-focused electric hypercar BYD Yangwang U9 Xtreme reached a speed of 503.17 km/h (312.66 mph) on November 1 on a closed highway in Abu Dhabi, electrek.co reports [1]. According to the manufacturer, the vehicle became the first production car to exceed 500 km/h, with the attempt officially recognized by the FIA and Guinness World Records. The record-setting run was conducted on a 10 km closed section of the Sheikh Khalifa Bin Zayed International Road (E11), which provided a 7 km straight section for the test [1]. German racing driver Marc Basseng was behind the wheel during the run.

## Powertrain and battery architecture

The Yangwang U9 Xtreme features four electric motors, each rated at 555 kW and spinning at up to 30,000 rpm, delivering a combined output of 2,220 kW (over 3,000 PS) [1]. The system operates on a 1,200-volt electrical architecture and utilizes a specialized track-grade version of BYD's Blade Battery based on lithium iron phosphate (LFP) chemistry [1]. The run also utilized bespoke semi-slick tires engineered in collaboration with Giti Tire [1].

## Record parameters and testing conditions

The record was established over a two-day testing program [1]. During the first day, the vehicle reached 490 km/h; subsequent overnight modifications to the rear wing aerodynamics, shock absorber damping, and tire pressures allowed Basseng to achieve 503.17 km/h on the following day [1]. The attempt surpassed the model's previous record of 496.22 km/h, which was recorded in September 2025 at the ATP Papenburg proving ground in Germany [1]. 

Guinness World Records logged the result as a single-direction top-speed achievement for a production car and an electric production car [1]. Traditional production car benchmarks require averaging two runs in opposing directions to account for gradient and wind effects [1]. BYD plans to manufacture a limited production series of 30 units priced at approximately $3 million each [1].

## Sources

1. [electrek.co](https://electrek.co/2026/11/06/byd-yangwang-u9-xtreme-first-production-car-500-km-h)

---

Source: RealTech, realtech.media — https://realtech.media/news/rt-640ded3a693b9e5c24f815f5_byd_yangwang_u9/