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MG MG4 vs BYD Dolphin comparison

Compare performance (204 HP vs 204 HP), boot space and price (30,500 £ vs 29,700 £ ) at a glance. Find out which car is the better choice for you – MG MG4 or BYD Dolphin?

MG MG4 vs BYD Dolphin: Key differences

MG MG4

5 (2 Reviews)
rate
  • only slightly more electric range
  • marginally lighter

BYD Dolphin

3.7 (3 Reviews)
rate
  • very slightly cheaper
  • very slightly more efficient
  • barely quicker 0–100 km/h

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

MG4

Comparison of the BYD Dolphin and MG4: A Clash of Electric Hatchbacks

The automotive world is witnessing a significant shift towards electrification, with numerous manufacturers entering the race to provide efficient and stylish electric vehicles. Two fascinating contenders in the hatchback segment are the BYD Dolphin and the MG4. Both vehicles boast impressive credentials, but which one stands out? Let's delve into their technical aspects and innovative features.

Dolphin

Design and Dimensions

The BYD Dolphin presents a contemporary design in the hatchback category, with its compact dimensions of 4290 mm in length, 1770 mm in width, and 1570 mm in height. Meanwhile, the MG4 exudes a slightly sportier stance, measuring 4287 mm in length, 1836 mm in width, and a varying height between 1504 mm and 1516 mm, depending on the version.

MG4

Performance and Power

Both the BYD Dolphin and the MG4 are equipped with electric powertrains and automatic transmissions utilizing reduction gearboxes. The BYD Dolphin offers a solid performance with a single power output of 204 HP and a torque of 310 Nm, achieving a 0-100 km/h acceleration in 7 seconds. Its front-wheel-drive configuration provides a smooth driving experience.

In contrast, the MG4 provides multiple power options ranging from 170 HP to a robust 435 HP. Its torque varies with the model, from 250 Nm to an impressive 600 Nm. The MG4's acceleration times vary according to the power output, with the quickest capable of achieving 0-100 km/h in just 3.8 seconds. Additionally, the MG4 offers both rear-wheel and all-wheel-drive options, catering to different driving preferences and needs.

Dolphin

Efficiency and Range

When it comes to energy consumption, the BYD Dolphin consumes 15.9 kWh/100 km, offering an electric range of 427 km, which is a commendable achievement for this segment. The MG4, depending on the version, has a consumption range from 16 to 18.7 kWh/100 km. Its electric range varies as well, from 350 km to an impressive 520 km, revealing the potential of its different battery capacities, notably the 74.4 kWh battery option.

MG4

Interior and Cargo Space

Both cars are designed as five-seaters, providing ample room for passengers. The BYD Dolphin features a trunk capacity of 345 liters, suitable for daily commuting and weekend getaways. The MG4 offers slightly more variability in cargo space, with capacities ranging from 350 to 363 liters, depending on the selected model. This slight advantage might make a difference for those prioritizing luggage space.

Dolphin

Environmental Impact

Both vehicles proudly hold an A class CO2 efficiency rating and produce zero emissions, aligning with the global push towards sustainable transportation solutions. Their sustainable design and focus on reducing the carbon footprint make them appealing choices for the eco-conscious consumer.

MG4

Conclusion

Choosing between the BYD Dolphin and the MG4 may ultimately come down to an individual's performance needs and styling preferences. The Dolphin offers a straightforward yet capable electric driving experience, while the MG4 provides a range of powertrains and drive types to suit various enthusiasts. As the market for electric vehicles continues to expand, both of these models make a compelling case for considering an electric hatchback as your next car.

Frequently compared as well

BYD Dolphin
BYD Atto 2
VS
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 …
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 …

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

MG4

Costs and Efficiency:

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

BYD Dolphin is very slightly cheaper – starting at 29,700 £ , while the MG MG4 costs 30,500 £ . That’s a price difference of around 857 £.

In terms of energy consumption, the BYD Dolphin is very slightly more efficient: consuming 15.9 kWh/100km compared to 16.4 kWh/100km for the MG MG4. That’s a difference of about 0.5 kWh/100km.

As for electric range, the MG MG4 offers only slightly more range – reaching up to 450 km, about 23 km more than the BYD Dolphin.

Dolphin

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.

Both models deliver identical power – 204 HP each.

When accelerating from 0 to 100 km/h, the BYD Dolphin is barely quicker – completing the sprint in 7 s, while the MG MG4 takes 7.1 s. That’s about 0.1 s quicker.

There’s also a difference in torque: the BYD Dolphin delivers slightly more torque with 310 Nm compared to 250 Nm. That’s about 60 Nm more.

MG4

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 5 people.

In terms of curb weight, MG MG4 is marginally lighter – 1,635 kg compared to 1,658 kg. The difference is around 23 kg.

When it comes to payload, the MG MG4 carries marginally more – 449 kg compared to 410 kg. That’s a difference of about 39 kg.

Who wins the race in the data check?

The BYD Dolphin is narrowly ahead 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 £29,700
Dolphin

BYD Dolphin

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Front-Wheel Drive
  • Power HP : 204 HP
  • Consumption kWh/100km : 15.9 kWh/100km
  • Electric Range : 427 km
details
MG MG4
BYD Dolphin

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

MG MG4

The MG4 is a sprightly electric hatch that marries bold, modern looks with genuinely useful practicality, making it a great everyday companion for city and weekend life alike. Inside it surprises with a smart, user-friendly cabin and an engaging drive that delivers more personality than you might expect for the price.

details
MG.027.STUDIO
MG.028.STUDIO
MG.036.STUDIO
MG.038_0.STUDIO

Reviews MG MG4

5 (2 Reviews)
rate
Angio
12 Jan 2026, 12:26:30

Superb

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
Sal
23 Oct 2025, 20:41:36

I tried it today and found the car genuinely pleasant and comfortable to drive.

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
E3343F48-6402-43F6-BA2F-1FB1F8EFCE7F
000AECC3-AF0F-42E4-A606-040E7FB88B81
0344F0B7-DD22-4EE0-9220-311A496628F6

Reviews BYD Dolphin

3.7 (3 Reviews)
rate
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

Frequently compared as well

MG MG4
BYD Atto 2
VS
Think of the MG4 as the affordable hot hatch of the EV world — compact, sharp-handling and great value for drivers who want a little grin in every corner, while the BYD Atto 2 is a chilled crossover, taller, roomier and packed with clever tech and impressive real-world range. If you want lively …
BYD Dolphin
Renault R5
VS
If you want no-nonsense electric practicality and impressive value for daily miles, the BYD Dolphin delivers usable range, clever packaging and tech that actually matters without breaking the bank. The Renault 5, meanwhile, sacrifices a little practicality for irresistible retro charm and …
MG MG3
MG MG4
VS
If you're after cheap thrills and nimble city driving, the MG3 is the plucky choice — inexpensive, quirky and perfect for tight car parks. But for real-world practicality, range and a more modern feel, the MG4's stylish hatch and EV tech make it the smarter buy for daily drivers who want a bit of …
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MG MGS5 EV
VS
The MG4 is a zippy compact EV that fizzes through town with sharp handling, clever packaging and an attractive price — perfect if you want fun, efficiency and a bit of character in your daily commute. By contrast the MG MGS5 EV trades some of that cheeky agility for a taller, more spacious and …
MG MG4
Nissan Leaf
VS
The MG MG4 and Nissan Leaf compete for the top spot in your garage. See how both models differ in key areas like performance, running costs, interior space and technology. A fast, clear comparison helps you pick the one that fits your needs best.
MG MG4
BYD Dolphin Surf
VS
MG MG4 and BYD Dolphin Surf go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice.
Kia EV3
MG MG4
VS
When comparing the Kia EV3 and the MG MG4, both electric vehicles showcase impressive features and performance. The Kia EV3 stands out with its sleek design and advanced tech offerings, while the MG MG4 impresses with its affordability and spacious interior. Ultimately, the choice between the two …
MG MG4
Peugeot 208
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MG MG4 and Peugeot 208 go head-to-head: compare performance, space, features and price in one quick overview to see which model suits your daily driving, budget and lifestyle better. A clear, side-by-side look helps you make the smarter choice.
MG MG4
BYD Dolphin

Costs and Consumption
Price
30,500 - 36,500 £
Price
29,700 - 31,400 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
16.4 - 17 kWh/100km
Consumption kWh/100km
15.9 kWh/100km
Electric Range
330 - 450 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
Hatchback
Body Type
Hatchback
Seats
5
Seats
5
Doors
-
Doors
5
Curb weight
1,635 - 1,695 kg
Curb weight
1,658 kg
Trunk capacity
-
Trunk capacity
345 L
Length
-
Length
4,290 mm
Width
1,836 mm
Width
1,770 mm
Height
-
Height
1,570 mm
Max trunk capacity
-
Max trunk capacity
1,310 L
Payload
389 - 449 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
Drive Type
Front-Wheel Drive
Power HP
170 - 204 HP
Power HP
204 HP
Acceleration 0-100km/h
7.1 - 7.6 s
Acceleration 0-100km/h
7 s
Max Speed
-
Max Speed
160 km/h
Torque
250 Nm
Torque
310 Nm
Number of Cylinders
-
Number of Cylinders
-
Power kW
125 - 150 kW
Power kW
150 kW
Engine capacity
-
Engine capacity
-

General
Model Year
2,025
Model Year
2,023
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
MG
Brand
BYD
Is the MG MG4 offered with different drivetrains?

The MG MG4 is available as Rear-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.