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BYD Dolphin vs NIO ET7 comparison
Compare performance (204 HP vs 653 HP), boot space and price (29,700 £ vs 59,900 £ ) at a glance. Find out which car is the better choice for you – BYD Dolphin or NIO ET7?
BYD Dolphin vs NIO ET7: Key differences
All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.
Dolphin
Costs and Efficiency:
Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.
BYD Dolphin is substantially cheaper – starting at 29,700 £ , while the NIO ET7 costs 59,900 £ . That’s a price difference of around 30,223 £.
In terms of energy consumption, the BYD Dolphin is moderately more efficient: consuming 15.9 kWh/100km compared to 19 kWh/100km for the NIO ET7. That’s a difference of about 3.1 kWh/100km.
As for electric range, the NIO ET7 offers clearly more range – reaching up to 584 km, about 157 km more than the BYD Dolphin.
ET7
Engine and Performance:
Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.
When it comes to engine power, the NIO ET7 offers considerably more power – delivering 653 HP compared to 204 HP. That’s roughly 449 HP more horsepower.
When accelerating from 0 to 100 km/h, the NIO ET7 is substantially quicker – completing the sprint in 3.8 s, while the BYD Dolphin takes 7 s. That’s about 3.2 s quicker.
There’s also a difference in torque: the NIO ET7 delivers significantly more torque with 850 Nm compared to 310 Nm. That’s about 540 Nm more.
Dolphin
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 Dolphin is substantially lighter – 1,658 kg compared to 2,434 kg. The difference is around 776 kg.
Looking at boot space, the NIO ET7 offers very slightly more boot space – 363 L compared to 345 L. That’s a difference of about 18 L.
When it comes to payload, the NIO ET7 carries somewhat 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 is clearly superior overall 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
NIO ET7
BYD Dolphin
NIO ET7
Costs and Consumption
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View detailed analysis
Engine and Performance
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Dimensions and Body
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View detailed analysis
BYD Dolphin
The BYD Dolphin is a cheeky electric hatchback that blends playful styling with surprising practicality, making it a brilliant city companion for buyers who want modern tech without the showroom bravado. It’s comfy, efficient and easy to live with, and while it won’t blind you with supercar drama, it will quietly get the job done with plenty of character.
details
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.
details
BYD Dolphin
NIO ET7
Costs and Consumption |
|
|---|---|
|
Price
29,700 - 31,400 £
|
Price
59,900 - 68,900 £
|
|
Consumption L/100km
-
|
Consumption L/100km
-
|
|
Consumption kWh/100km
15.9 kWh/100km
|
Consumption kWh/100km
19 - 19.3 kWh/100km
|
|
Electric Range
427 km
|
Electric Range
451 - 584 km
|
|
Battery Capacity
-
|
Battery Capacity
73.5 - 90 kWh
|
|
co2
0 g/km
|
co2
0 g/km
|
|
Fuel tank capacity
-
|
Fuel tank capacity
-
|
Dimensions and Body |
|
|---|---|
|
Body Type
Hatchback
|
Body Type
Sedan
|
|
Seats
5
|
Seats
5
|
|
Doors
-
|
Doors
4
|
|
Curb weight
1,658 kg
|
Curb weight
2,434 - 2,454 kg
|
|
Trunk capacity
345 L
|
Trunk capacity
363 L
|
|
Length
-
|
Length
5,101 mm
|
|
Width
1,770 mm
|
Width
1,987 mm
|
|
Height
-
|
Height
1,509 mm
|
|
Max trunk capacity
-
|
Max trunk capacity
-
|
|
Payload
410 kg
|
Payload
446 - 466 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Electric
|
Engine Type
Electric
|
|
Transmission
Automatic
|
Transmission
Automatic
|
|
Transmission Detail
Reduction Gearbox
|
Transmission Detail
Reduction Gearbox
|
|
Drive Type
Front-Wheel Drive
|
Drive Type
All-Wheel Drive
|
|
Power HP
204 HP
|
Power HP
653 HP
|
|
Acceleration 0-100km/h
7 s
|
Acceleration 0-100km/h
3.8 s
|
|
Max Speed
-
|
Max Speed
200 km/h
|
|
Torque
310 Nm
|
Torque
850 Nm
|
|
Number of Cylinders
-
|
Number of Cylinders
-
|
|
Power kW
150 kW
|
Power kW
480 kW
|
|
Engine capacity
-
|
Engine capacity
-
|
General |
|
|---|---|
|
Model Year
2023
|
Model Year
2022
|
|
CO2 Efficiency Class
A
|
CO2 Efficiency Class
A
|
|
Brand
BYD
|
Brand
NIO
|
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.