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BMW i7 vs BYD Dolphin comparison

Compare performance (659 HP vs 204 HP), boot space and price (99,300 £ vs 29,700 £ ) at a glance. Find out which car is the better choice for you – BMW i7 or BYD Dolphin?

BMW i7 vs BYD Dolphin: Key differences

BMW i7

  • clearly more power
  • visibly more electric range
  • clearly quicker 0–100 km/h
  • clearly more trunk space
details

BYD Dolphin

4 (4 Reviews)
rate
  • significantly cheaper
  • moderately more efficient
  • significantly lighter
details

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

By Achim Sedelmaier

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

i7

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

BYD Dolphin is significantly cheaper – starting at 29,700 £ , while the BMW i7 costs 99,300 £ . That’s a price difference of around 69,651 £.

In terms of energy consumption, the BYD Dolphin is moderately more efficient: consuming 15.9 kWh/100km compared to 18.5 kWh/100km for the BMW i7. That’s a difference of about 2.6 kWh/100km.

As for electric range, the BMW i7 offers visibly more range – reaching up to 624 km, about 197 km more than the BYD Dolphin.

Dolphin

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 BMW i7 offers clearly more power – delivering 659 HP compared to 204 HP. That’s roughly 455 HP more horsepower.

When accelerating from 0 to 100 km/h, the BMW i7 is clearly quicker – completing the sprint in 3.7 s, while the BYD Dolphin takes 7 s. That’s about 3.3 s quicker.

There’s also a difference in torque: the BMW i7 delivers considerably more torque with 1,100 Nm compared to 310 Nm. That’s about 790 Nm more.

i7

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In terms of curb weight, BYD Dolphin is significantly lighter – 1,658 kg compared to 2,595 kg. The difference is around 937 kg.

Looking at boot space, the BMW i7 offers clearly more boot space – 500 L compared to 345 L. That’s a difference of about 155 L.

When it comes to payload, the BMW i7 carries visibly more – 535 kg compared to 410 kg. That’s a difference of about 125 kg.

Who wins the race in the data check?

The BMW i7 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 £99,300
i7

BMW i7

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 455 - 659 HP
  • Consumption kWh/100km : 18.5 - 20.8 kWh/100km
  • Electric Range : 559 - 624 km
details

Frequently compared as well

BYD Dolphin
BYD Dolphin Surf
VS
The BYD Dolphin and the sportier Dolphin Surf share the same efficient electric bones, but the Surf adds visual muscle, slightly firmer suspension and sharper steering for anyone craving a bit more attitude. Inside they’re twins — clever packaging, roomy rear seats and a useful boot — so the Surf’s …
BYD Dolphin
BYD Atto 2
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The BYD Dolphin is a zippy, compact EV built for urban life — efficient, easy to park and kind on the wallet, making it a brilliant daily driver for city dwellers. The BYD Atto 2 swaps hatchback frugality for crossover comfort and tech, offering more space, range and kit for buyers who value …
BMW i7
BYD Dolphin

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW i7

The BMW i7 is a quietly imposing electric limousine that wraps advanced tech and traditional Bavarian comfort in a futuristic skin. For buyers after serene luxury with a mischievous streak, it pampers rear-seat occupants while reminding the driver that BMW still knows how to make a big car feel alive.

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Reviews BMW i7

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

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.

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Reviews BYD Dolphin

4 (4 Reviews)
rate
Mark Kennedy
12 Apr 2026, 17:25:08

Absolute gem of a car, wonderfully smooth and powerful, along with being loaded with tech. By far the best car I've had. Would highly recommend

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
John Maskell
3 Jan 2026, 07:26:24

Loving the dolphin

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

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BYD Dolphin
Renault R5
VS
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BYD Dolphin
VW ID.3
VS
Comparing the BYD Dolphin and the Volkswagen ID.3 gives a clear picture of two distinct approaches to compact electric hatchbacks: the Dolphin emphasizes value, efficiency and clever packaging, while the ID.3 leans on refinement, driving dynamics and European build quality. If you prioritise range, …
BYD Dolphin
Nissan Micra
VS
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BYD Dolphin
Hyundai Kona
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BYD Dolphin
Peugeot 208
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Opel Frontera
VS
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BYD Dolphin
Ford Puma
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BYD Dolphin
Kia EV3
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In the increasingly competitive electric vehicle market, the BYD Dolphin and Kia EV3 stand out with their unique features and modern designs. The Dolphin boasts impressive range and efficiency, catering to eco-conscious drivers, while the EV3 impresses with its sporty handling and advanced …
BMW i7
BYD Dolphin

Costs and Consumption
Price
99,300 - 157,200 £
Price
29,700 - 31,400 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
18.5 - 20.8 kWh/100km
Consumption kWh/100km
15.9 kWh/100km
Electric Range
559 - 624 km
Electric Range
427 km
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
Hatchback
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
2,595 - 2,770 kg
Curb weight
1,658 kg
Trunk capacity
500 L
Trunk capacity
345 L
Length
-
Length
-
Width
1,950 mm
Width
1,770 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
480 - 535 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
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
455 - 659 HP
Power HP
204 HP
Acceleration 0-100km/h
3.7 - 5.5 s
Acceleration 0-100km/h
7 s
Max Speed
-
Max Speed
-
Torque
650 - 1,100 Nm
Torque
310 Nm
Number of Cylinders
-
Number of Cylinders
-
Power kW
335 - 485 kW
Power kW
150 kW
Engine capacity
-
Engine capacity
-

General
Model Year
2,022 - 2,023
Model Year
2023
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
BMW
Brand
BYD
Is the BMW i7 offered with different drivetrains?

The BMW i7 is offered with Rear-Wheel Drive or 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.