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NIO ET9: a luxurious electric sedan, tech and what to know
NIO ET9 — the large luxury electric sedan launching in 2025 that sees NIO step into the top class. We look at the key tech specs, battery swap system and what you need to know if you're considering such a car.
ET9 in brief
NIO ET9 — a four-door luxury sedan on the NT 3.0 platform. It measures around 5.3 m in length, with a wheelbase of about 3.25 m, placing it in the class of the largest luxury sedans. The production version was unveiled at the end of 2023, with production starting in 2025.
The ET9 is billed as NIO's tech flagship: it features 900 V electric architecture, active suspension and electronic steering without a mechanical link (steer-by-wire). The car is designed to use a swappable battery, like other NIO models.
One generation — what you need to know
The ET9 is a new model, so it only has one generation and one main technical configuration. There aren't many used examples on the market yet — most are nearly new or have covered few miles.
The ET9 also sets the NIO sedan range apart: the ET5 is smaller, the ET7 is a mid-size flagship, and the ET9 is positioned above them in terms of size, price and tech. If you don't need the top class, the ET7 or ET5 might be a smarter choice.
Engine, battery and tech
The ET9 features an all-wheel-drive system with two motors: a rear-mounted permanent magnet motor (around 340 kW) and a front-mounted asynchronous motor (around 180 kW). Combined power is approximately 697 hp, with a torque of around 700 N·m. It uses a 100 kWh swappable battery.
The car is equipped with numerous sensors, including lidar, and NIO's proprietary lights for advanced driver-assistance systems. All these features work in tandem with software that receives over-the-air updates, so make sure all functions are operational in your market before purchasing.
What to check when buying an ET9
Check if the car meets European standards and if all advanced features work not just in China. Request documents about battery ownership — NIO offers battery purchase or leasing, and transfer conditions may vary.
Due to very new technologies (active suspension, electronic steering), maintenance is more critical than for a typical car. Find out who in Lithuania or a neighboring country can service it, what the warranty is, and if the car was imported without official support.
Versions
The ET9 is offered with one main technical configuration; differences between cars are usually related to the market and software.
ET9
From 2025The sole main configuration is a 100 kWh battery and a dual-motor all-wheel-drive system.
- Approximately 697 hp combined power
- 100 kWh swappable battery
- Active suspension, electronic steering (steer-by-wire)
Comparison of NIO sedan range
| ET9 | ET7 | ET5 | |
|---|---|---|---|
| Who it's for | For those seeking a luxurious, large sedan | Mid-size flagship | More compact electric sedan |
| Length (approx.) | 5.3 m | 5.1 m | 4.8 m |
| Platform | NT 3.0 | NT 2.0 | NT 2.0 |
| Used offerings | Very limited | Limited | Limited |
| Price in the used market (relatively) | €€€ | €€€ | €€ |
The ET9 is the top choice if you're after the ultimate NIO luxury sedan with the latest tech. If price and simpler maintenance are more important, consider the ET7 or ET5.
Pros
- Spacious and roomy interior
- Very powerful all-wheel drive
- Advanced suspension and driver-assistance systems
- Option to swap the battery
Cons
- Very new and rarely seen in the used market
- Complex electronics and maintenance
- Unclear resale value
Frequently asked questions
How does the ET9 differ from the ET7?
The ET9 is the larger, more tech-savvy flagship with 900V architecture, active suspension, and electronic steering. The ET7 is smaller and more affordable.
Is the ET9 battery swappable?
Yes, the car is designed to use NIO's swappable battery, but this only works at supporting stations, of which there are few in Europe.
Is it worth buying a used ET9?
Only if the paperwork is clear, there's a warranty, and servicing options. Due to its novelty and complex technologies, the cost and repairs can be high.
Updated 2026-10-21 · Trim levels and equipment vary by market and model year — check the equipment of the specific car. · Translated automatically
