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BMW X3 vs BYD Sealion 7 comparison

Compare performance (398 HP vs 530 HP), boot space and price (51,700 £ vs 42,800 £ ) at a glance. Find out which car is the better choice for you – BMW X3 or BYD Sealion 7?

BMW X3 vs BYD Sealion 7: Key differences

BMW X3

4.6 (1 Reviews)
rate
  • a bit lighter
  • barely more trunk space
details

BYD Sealion 7

4.9 (3 Reviews)
rate
  • visibly cheaper
  • clearly more power
  • clearly more electric range
  • barely 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

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

X3

Costs and Efficiency:

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

BYD Sealion 7 is visibly cheaper – starting at 42,800 £ , while the BMW X3 costs 51,700 £ . That’s a price difference of around 8,837 £.

As for electric range, the BYD Sealion 7 offers clearly more range – reaching up to 502 km, about 414 km more than the BMW X3.

Sealion 7

Engine and Performance:

Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.

When it comes to engine power, the BYD Sealion 7 offers clearly more power – delivering 530 HP compared to 398 HP. That’s roughly 132 HP more horsepower.

When accelerating from 0 to 100 km/h, the BYD Sealion 7 is barely quicker – completing the sprint in 4.5 s, while the BMW X3 takes 4.6 s. That’s about 0.1 s quicker.

There’s also a difference in torque: the BYD Sealion 7 delivers barely more torque with 690 Nm compared to 670 Nm. That’s about 20 Nm more.

X3

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, BMW X3 is a bit lighter – 1,930 kg compared to 2,225 kg. The difference is around 295 kg.

Looking at boot space, the BMW X3 offers barely more boot space – 570 L compared to 520 L. That’s a difference of about 50 L.

When it comes to payload, the BMW X3 carries noticeably more – 570 kg compared to 410 kg. That’s a difference of about 160 kg.

Who wins the race in the data check?

The BYD Sealion 7 is decisively 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 £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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BMW X3
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Costs and Consumption
View detailed analysis

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View detailed analysis

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BMW X3

The BMW X3 blends sporty handling with premium comfort, making it a strong choice for drivers who want an engaging everyday SUV. Its well-appointed interior and confident road manners give it broad appeal for families and commuters who value style and versatility.

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Reviews BMW X3

4.6 (1 Reviews)
rate

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

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.

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Reviews BYD Sealion 7

4.9 (3 Reviews)
rate
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

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BMW X3
BYD Sealion 7

Costs and Consumption
Price
51,700 - 73,000 £
Price
42,800 - 52,300 £
Consumption L/100km
2.8 - 7.7 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
19.9 - 21.9 kWh/100km
Electric Range
88 km
Electric Range
456 - 502 km
Battery Capacity
-
Battery Capacity
-
co2
64 - 175 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,930 - 2,140 kg
Curb weight
2,225 - 2,435 kg
Trunk capacity
460 - 570 L
Trunk capacity
520 L
Length
-
Length
-
Width
1,920 mm
Width
1,925 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
570 kg
Payload
410 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV, Plugin Hybrid
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
197 - 398 HP
Power HP
313 - 530 HP
Acceleration 0-100km/h
4.6 - 7.8 s
Acceleration 0-100km/h
4.5 - 6.7 s
Max Speed
-
Max Speed
-
Torque
330 - 670 Nm
Torque
380 - 690 Nm
Number of Cylinders
4 - 6
Number of Cylinders
-
Power kW
145 - 293 kW
Power kW
230 - 390 kW
Engine capacity
1,995 - 2,998 cm3
Engine capacity
-

General
Model Year
2,024 - 2,025
Model Year
2024
CO2 Efficiency Class
F, E, B
CO2 Efficiency Class
A
Brand
BMW
Brand
BYD
Is the BMW X3 offered with different drivetrains?

The BMW X3 is offered with 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.