Earlier, we reported on BYD’s ambitious plans for a new electric flagship sedan, the Seal 08, promising up to 1,000 km of range and the ability to add hundreds of kilometers of driving in just a few minutes of charging.
New information from China’s Ministry of Industry and Information Technology (MIIT) now provides a clearer picture of that model, the upcoming Seal 08, revealing additional technical details and confirming several of the claims made during BYD’s recent technology presentation.
Technology showcase
Images and specifications published in the latest regulatory filing offer the first near-production view of the Seal 08 and underline its role as a technology showcase within BYD’s Ocean series.
The model will sit above the current Seal and is expected to introduce several new systems that the Chinese manufacturer plans to deploy across future electric vehicles.
Central to the new sedan is BYD’s second-generation Blade battery architecture, often referred to as Blade Battery 2.0. According to Chinese media reports, the new pack combines two different cell formats within the same platform.
Shorter blade cells are designed for extremely high charging power, and longer cells are optimized for maximum energy density and range. The updated battery is said to target energy densities of around 210 Wh/kg, improving on the first-generation Blade packs that currently power many BYD models.
400 km in five minutes
The Seal 08 will also debut a new high-voltage electrical architecture designed to support megawatt-level charging. BYD previously claimed that the car could add around 400 kilometers of driving range in roughly five minutes when connected to a compatible ultra-fast charger.
The company is developing a new generation of charging stations capable of delivering up to about 1.5 megawatts of power, although these will initially be rolled out mainly in China.
The widely cited 1,000-kilometer figure refers to China’s CLTC test cycle, which generally yields higher numbers than Europe’s WLTP standard. Converted to WLTP, the Seal 08 could achieve roughly 760 to 800 kilometers of range.
That would put it in the same territory as the longest-range EVs currently available, including the Mercedes-Benz EQS (820 km) and upcoming long-range electric models like the Volvo EX60 (810 km) and the BMW iX3 (805 km).
640 horsepower
The MIIT filing also indicates that BYD is preparing a powerful all-wheel-drive version. Chinese reports suggest a combined output of around 480 kW, or approximately 640 horsepower, placing the Seal 08 above the performance version of the current Seal.
This suggests that the new model is intended not only as a long-range flagship but also as a high-performance electric sedan.
Beyond the battery and powertrain technology, the regulatory documents reveal several premium chassis features. The Seal 08 will reportedly be equipped with BYD’s DiSus-A intelligent suspension system, which replaces traditional steel springs with adaptive air suspension designed to improve both ride comfort and handling.
Rear-wheel steering is also expected, a feature that remains relatively rare in this class but is increasingly appearing in larger electric vehicles.
Driver-assistance technology is another area where the new sedan moves upmarket. Images associated with the filing show a roof-mounted LiDAR sensor, suggesting the Seal 08 will use BYD’s latest “God’s Eye” advanced driver-assistance system.
This platform is designed to provide more advanced Level-2 driver assistance than earlier Ocean-series models, which rely mainly on cameras and radar.
Key specifications missing
Despite the additional details revealed in the MIIT documentation, several key specifications remain undisclosed. BYD has not yet confirmed the exact battery capacity, the detailed charging curve, or the full range of motor configurations that will be offered.
Those figures are expected to be announced closer to the model’s anticipated launch in the Chinese market, which reports suggest could take place in the second quarter of 2026.
BYD has not yet announced plans for a European introduction, though export versions could follow later if the model becomes part of the brand’s global lineup.
