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BYD Sealion 7 vs MG MGS9 comparison

Compare performance (530 HP vs 299 HP), boot space and price (42,800 £ vs 38,600 £ ) at a glance. Find out which car is the better choice for you – BYD Sealion 7 or MG MGS9?

BYD Sealion 7 vs MG MGS9: Key differences

BYD Sealion 7

4.8 (5 Reviews)
rate
  • significantly more power
  • substantially more electric range
  • clearly quicker 0–100 km/h
  • visibly more trunk space
details

MG MGS9

5 (1 Reviews)
rate
  • a bit cheaper
  • very slightly 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

Sealion 7

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.

MG MGS9 is a bit cheaper – starting at 38,600 £ , while the BYD Sealion 7 costs 42,800 £ . That’s a price difference of around 4,286 £.

As for electric range, the BYD Sealion 7 offers substantially more range – reaching up to 502 km, about 402 km more than the MG MGS9.

MGS9

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 BYD Sealion 7 offers significantly more power – delivering 530 HP compared to 299 HP. That’s roughly 231 HP more horsepower.

When accelerating from 0 to 100 km/h, the BYD Sealion 7 is clearly quicker – completing the sprint in 4.5 s, while the MG MGS9 takes 9.6 s. That’s about 5.1 s quicker.

There’s also a difference in torque: the BYD Sealion 7 delivers clearly more torque with 690 Nm compared to 390 Nm. That’s about 300 Nm more.

Sealion 7

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.

Seats: MG MGS9 offers more seats – 7 vs 5.

In terms of curb weight, MG MGS9 is very slightly lighter – 2,160 kg compared to 2,225 kg. The difference is around 65 kg.

Looking at boot space, the BYD Sealion 7 offers visibly more boot space – 520 L compared to 332 L. That’s a difference of about 188 L.

When it comes to payload, the MG MGS9 carries markedly more – 557 kg compared to 410 kg. That’s a difference of about 147 kg.

Who wins the race in the data check?

The BYD Sealion 7 is far ahead 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 £42,800
Sealion 7

BYD Sealion 7

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 313 - 530 HP
  • Consumption kWh/100km 19.9 - 21.9 kWh/100km
  • Electric Range 456 - 502 km
details

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BYD Sealion 7
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BYD Sealion 7
MG MGS9

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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.

details
img-0696
byd-sealion-7-17
byd-sealion-7-12

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

MG MGS9

The MG MGS9 presents itself as a stylish, value-focused flagship SUV with a roomy, well-equipped cabin and contemporary infotainment. It balances a comfortable ride with engaging handling, making it a compelling choice for buyers seeking a feature-rich alternative to established rivals.

details
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Reviews MG MGS9

5 (1 Reviews)
rate

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

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MG MGS9

Costs and Consumption
Price
42,800 - 52,300 £
Price
38,600 - 41,800 £
Consumption L/100km
-
Consumption L/100km
2.4 L/100km
Consumption kWh/100km
19.9 - 21.9 kWh/100km
Consumption kWh/100km
-
Electric Range
456 - 502 km
Electric Range
100 km
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
54 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
7
Doors
-
Doors
-
Curb weight
2,225 - 2,435 kg
Curb weight
2,160 kg
Trunk capacity
520 L
Trunk capacity
332 L
Length
-
Length
-
Width
1,925 mm
Width
1,967 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
410 kg
Payload
557 kg

Engine and Performance
Engine Type
Electric
Engine Type
Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
313 - 530 HP
Power HP
299 HP
Acceleration 0-100km/h
4.5 - 6.7 s
Acceleration 0-100km/h
9.6 s
Max Speed
-
Max Speed
-
Torque
380 - 690 Nm
Torque
390 Nm
Number of Cylinders
-
Number of Cylinders
4
Power kW
230 - 390 kW
Power kW
220 kW
Engine capacity
-
Engine capacity
1,496 cm3

General
Model Year
2024
Model Year
2026
CO2 Efficiency Class
A
CO2 Efficiency Class
B
Brand
BYD
Brand
MG
What drivetrain options does the BYD Sealion 7 have?

The BYD Sealion 7 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.