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BYD Dolphin vs MG MG4 comparison

Compare performance (204 HP vs 435 HP), boot space and price (29,700 £ vs 36,800 £ ) at a glance. Find out which car is the better choice for you – BYD Dolphin or MG MG4?

BYD Dolphin vs MG MG4: Key differences

BYD Dolphin

4 (4 Reviews)
rate
  • noticeably cheaper
  • only slightly more efficient
  • barely lighter
details

MG MG4

4.8 (3 Reviews)
rate
  • significantly more power
  • noticeably more electric range
  • considerably quicker 0–100 km/h
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

Dolphin

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.

MG4

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.

Dolphin

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.

MG4

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.

Dolphin

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.

MG4

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.

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 and BYD Atto 2 represent two distinct EV choices from BYD: the Dolphin is a compact, city-oriented hatchback focused on efficiency and nimble urban driving, while the Atto 2 is a compact crossover offering more space, a higher driving position and richer tech. Choose the Dolphin for …
BYD Dolphin
BYD Dolphin Surf
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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

Dolphin

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

BYD Dolphin is noticeably cheaper – starting at 29,700 £ , while the MG MG4 costs 36,800 £ . That’s a price difference of around 7,157 £.

In terms of energy consumption, the BYD Dolphin is only slightly more efficient: consuming 15.9 kWh/100km compared to 16.1 kWh/100km for the MG MG4. That’s a difference of about 0.2 kWh/100km.

As for electric range, the MG MG4 offers noticeably more range – reaching up to 545 km, about 118 km more than the BYD Dolphin.

MG4

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 MG MG4 offers significantly more power – delivering 435 HP compared to 204 HP. That’s roughly 231 HP more horsepower.

When accelerating from 0 to 100 km/h, the MG MG4 is considerably 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 MG MG4 delivers considerably more torque with 600 Nm compared to 310 Nm. That’s about 290 Nm more.

Dolphin

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, BYD Dolphin is barely lighter – 1,658 kg compared to 1,755 kg. The difference is around 97 kg.

When it comes to payload, the MG MG4 carries barely more – 448 kg compared to 410 kg. That’s a difference of about 38 kg.

Who wins the race in the data check?

The MG MG4 stands well ahead of its rival 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 £36,800
MG4

MG MG4

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 190 - 435 HP
  • Consumption kWh/100km 16.1 - 19 kWh/100km
  • Electric Range 405 - 545 km
details
BYD Dolphin
MG MG4

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

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

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

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.

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

Reviews MG MG4

4.8 (3 Reviews)
rate
TOTO
20 May 2026, 11:19:27

The MG4 seems more versatile to me than the Dolphin, which relies mainly on design. The MG4 has proven itself and remains an excellent used option with low mileage.

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

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MG MG4
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MG MG3
MG MG4
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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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BYD Dolphin
Renault R5
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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 …
Kia EV3
MG MG4
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Comparing the Kia EV3 and the MG4 pits two compact electric cars against each other that aim to deliver solid range, practical interiors and strong value. Choosing between the Kia EV3’s comfort-and-practicality focus and the MG4’s sportier driving character mostly comes down to whether you prefer …
MG MG4
BYD Dolphin Surf
VS
Comparing the MG4 and the BYD Dolphin Surf gives you a clear look at two affordable electric hatchbacks that target practical daily use but take very different approaches to range, interior space and driving character. If you want a compact EV that leans toward sharp handling and a sporty layout, …
BYD Dolphin
MG MG4

Costs and Consumption
Price
29,700 - 31,400 £
Price
36,800 - 40,300 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
15.9 kWh/100km
Consumption kWh/100km
16.1 - 19 kWh/100km
Electric Range
427 km
Electric Range
405 - 545 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
-
Curb weight
1,658 kg
Curb weight
1,755 - 1,810 kg
Trunk capacity
345 L
Trunk capacity
-
Length
-
Length
-
Width
1,770 mm
Width
1,836 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
410 kg
Payload
448 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
Rear-Wheel Drive, All-Wheel Drive
Power HP
204 HP
Power HP
190 - 435 HP
Acceleration 0-100km/h
7 s
Acceleration 0-100km/h
3.8 - 7.5 s
Max Speed
-
Max Speed
-
Torque
310 Nm
Torque
350 - 600 Nm
Number of Cylinders
-
Number of Cylinders
-
Power kW
150 kW
Power kW
140 - 320 kW
Engine capacity
-
Engine capacity
-

General
Model Year
2023
Model Year
2026
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
BYD
Brand
MG
What drive types are available for the BYD Dolphin?

The BYD Dolphin is available as Front-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.