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NIO ET7 vs BYD Sealion 7 comparison

Compare performance (653 HP vs 530 HP), boot space and price (59,900 £ vs 42,800 £ ) at a glance. Find out which car is the better choice for you – NIO ET7 or BYD Sealion 7?

NIO ET7 vs BYD Sealion 7: Key differences

NIO ET7

  • somewhat more power
  • marginally more efficient
  • a bit more electric range
  • somewhat quicker 0–100 km/h
details

BYD Sealion 7

4.8 (5 Reviews)
rate
  • clearly cheaper
  • barely lighter
  • markedly more trunk space
details

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

Here’s where it gets real: The technical differences in detail

ET7

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

BYD Sealion 7 is clearly cheaper – starting at 42,800 £ , while the NIO ET7 costs 59,900 £ . That’s a price difference of around 17,066 £.

In terms of energy consumption, the NIO ET7 is marginally more efficient: consuming 19 kWh/100km compared to 19.9 kWh/100km for the BYD Sealion 7. That’s a difference of about 0.9 kWh/100km.

As for electric range, the NIO ET7 offers a bit more range – reaching up to 584 km, about 82 km more than the BYD Sealion 7.

Sealion 7

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the NIO ET7 offers somewhat more power – delivering 653 HP compared to 530 HP. That’s roughly 123 HP more horsepower.

When accelerating from 0 to 100 km/h, the NIO ET7 is somewhat quicker – completing the sprint in 3.8 s, while the BYD Sealion 7 takes 4.5 s. That’s about 0.7 s quicker.

There’s also a difference in torque: the NIO ET7 delivers a bit more torque with 850 Nm compared to 690 Nm. That’s about 160 Nm more.

ET7

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Both vehicles offer seating for 5 people.

In terms of curb weight, BYD Sealion 7 is barely lighter – 2,225 kg compared to 2,434 kg. The difference is around 209 kg.

Looking at boot space, the BYD Sealion 7 offers markedly more boot space – 520 L compared to 363 L. That’s a difference of about 157 L.

When it comes to payload, the NIO ET7 carries slightly more – 466 kg compared to 410 kg. That’s a difference of about 56 kg.

Who wins the race in the data check?

The NIO ET7 shows a few small advantages in the objective data comparison.
This result only shows which model scores more points on paper – not which of the two cars feels right for you.

from £59,900
ET7

NIO ET7

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 653 HP
  • Consumption kWh/100km 19 - 19.3 kWh/100km
  • Electric Range 451 - 584 km
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Frequently compared as well

BYD Seal U
BYD Sealion 7
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NIO ET7
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

NIO ET7

The NIO ET7 arrives like a calm thunderstorm — sleek, silent and unapologetically clever, turning motorway cruising into the sort of effortless glide that makes other cars feel noisy and rehearsed. Inside, it's all luxury sofas and smart gadgets that actually help rather than confuse, so buyers who crave tech and comfort will feel like they've upgraded their life without needing to spellcheck the manual.

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ET7
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Reviews NIO ET7

No reviews yet. Share your experience and help others decide.

BYD Sealion 7

The BYD Sealion 7 is a sleek electric wagon that blends sporty styling with surprising practicality, making it a compelling choice for drivers who want something different from the usual hatchback or SUV. Its refined interior and composed road manners give it an upscale feel, while clever packaging keeps it versatile for daily use.

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Reviews BYD Sealion 7

4.8 (5 Reviews)
rate
Andre Plambeck
29 Jul 2026, 06:52:22

Several tests have said that the quality on the outside and especially inside is on par with the German premium brands, if not even higher.
I can confirm that. Incredible for this price.
At 2.4t it's not a corner-carving car. Still, the driving performance is impressive. Compared with my Tiguan Biturbo 240PS, fuel/charging needs have been cut in half.
Consumption and range always depend on the driver. Whether electric or internal combustion. Anyone who drives an EV changes their thinking. Charge when possible, not always only when necessary. Many supermarkets, McDonald's, etc. already have charging options. While eating or shopping, plug in, done. The car is parked anyway. No extra time!
If I think just of the DSG start with that one-second hesitation... that doesn't exist with an EV.
You have to experience it. You don't need 500 hp for that.
I drive the BYD Sealion 7 'Excellence' and I'm mega satisfied

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Rafael Serres Ferran
19 Jul 2026, 17:30:51

A much better vehicle than the 6. It beats it in practically every area. Faster, more room inside, better trunk, more comfortable

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Steinbach
2 Jun 2026, 11:36:25

Fantastic car in every respect. Looks, interior, power, range, comfort, finish, etc.

How do you mainly use this car? (optional): Company car / Business
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
oriol
27 Feb 2026, 15:33:27

range that I can always charge to 100% — unlike other brands that told me it was recommended to stop at 80%, which consequently cut my real range from 600 to 480 by not being able to charge to 100%. I think that's something people should know.

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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In the arena of electric SUVs, the BYD Sealion 7 and the smart #5 fiercely compete for dominance, each bringing unique attributes to the table. The BYD Sealion 7 impresses with its expansive range and robust performance, making it a solid choice for those who prioritize long-distance travel. …
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NIO ET7
BYD Sealion 7

Costs and Consumption
Price
59,900 - 68,900 £
Price
42,800 - 52,300 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
19 - 19.3 kWh/100km
Consumption kWh/100km
19.9 - 21.9 kWh/100km
Electric Range
451 - 584 km
Electric Range
456 - 502 km
Battery Capacity
73.5 - 90 kWh
Battery Capacity
-
co2
0 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
SUV
Seats
5
Seats
5
Doors
4
Doors
-
Curb weight
2,434 - 2,454 kg
Curb weight
2,225 - 2,435 kg
Trunk capacity
363 L
Trunk capacity
520 L
Length
5,101 mm
Length
-
Width
1,987 mm
Width
1,925 mm
Height
1,509 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
446 - 466 kg
Payload
410 kg

Engine and Performance
Engine Type
Electric
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
653 HP
Power HP
313 - 530 HP
Acceleration 0-100km/h
3.8 s
Acceleration 0-100km/h
4.5 - 6.7 s
Max Speed
200 km/h
Max Speed
-
Torque
850 Nm
Torque
380 - 690 Nm
Number of Cylinders
-
Number of Cylinders
-
Power kW
480 kW
Power kW
230 - 390 kW
Engine capacity
-
Engine capacity
-

General
Model Year
2022
Model Year
2024
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
NIO
Brand
BYD
What drivetrain options does the NIO ET7 have?

The NIO ET7 is offered with All-Wheel Drive.

DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. The displayed prices are estimates based on German list prices, adjusted to the respective country’s VAT. Country-specific registration taxes are not included. This information is not legally binding.