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Mercedes GLB vs BYD Sealion 7 comparison
Compare performance (354 HP vs 530 HP), boot space and price (43,200 £ vs 42,800 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLB or BYD Sealion 7?
Mercedes GLB vs BYD Sealion 7: Key differences
All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.
GLB
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 Sealion 7 is marginally cheaper – starting at 42,800 £ , while the Mercedes GLB costs 43,200 £ . That’s a price difference of around 349 £.
In terms of energy consumption, the Mercedes GLB is noticeably more efficient: consuming 15.4 kWh/100km compared to 19.9 kWh/100km for the BYD Sealion 7. That’s a difference of about 4.5 kWh/100km.
As for electric range, the Mercedes GLB offers clearly more range – reaching up to 631 km, about 129 km more than the BYD Sealion 7.
Sealion 7
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.
When it comes to engine power, the BYD Sealion 7 offers noticeably more power – delivering 530 HP compared to 354 HP. That’s roughly 176 HP more horsepower.
When accelerating from 0 to 100 km/h, the BYD Sealion 7 is noticeably quicker – completing the sprint in 4.5 s, while the Mercedes GLB takes 5.5 s. That’s about 1 s quicker.
There’s also a difference in torque: the BYD Sealion 7 delivers markedly more torque with 690 Nm compared to 515 Nm. That’s about 175 Nm more.
GLB
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, Mercedes GLB is noticeably lighter – 1,840 kg compared to 2,225 kg. The difference is around 385 kg.
Looking at boot space, the Mercedes GLB offers only slightly more boot space – 540 L compared to 520 L. That’s a difference of about 20 L.
When it comes to payload, the Mercedes GLB carries slightly more – 505 kg compared to 410 kg. That’s a difference of about 95 kg.
Who wins the race in the data check?
The BYD Sealion 7 comes out modestly 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
BYD Sealion 7
Mercedes GLB
BYD Sealion 7
Costs and Consumption
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Engine and Performance
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Dimensions and Body
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Mercedes GLB
The Mercedes GLB is a compact luxury SUV that blends smart packaging with a polished, composed driving experience. Its flexible interior and premium feel make it a sensible pick for buyers who want Mercedes comfort and practicality in a smaller footprint.
details
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
Mercedes GLB
BYD Sealion 7
Costs and Consumption |
|
|---|---|
|
Price
43,200 - 62,400 £
|
Price
42,800 - 52,300 £
|
|
Consumption L/100km
5.7 - 6.1 L/100km
|
Consumption L/100km
-
|
|
Consumption kWh/100km
15.4 - 15.9 kWh/100km
|
Consumption kWh/100km
19.9 - 21.9 kWh/100km
|
|
Electric Range
431 - 631 km
|
Electric Range
456 - 502 km
|
|
Battery Capacity
-
|
Battery Capacity
-
|
|
co2
0 - 138 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
1,840 - 2,280 kg
|
Curb weight
2,225 - 2,435 kg
|
|
Trunk capacity
540 L
|
Trunk capacity
520 L
|
|
Length
-
|
Length
-
|
|
Width
1,861 mm
|
Width
1,925 mm
|
|
Height
-
|
Height
-
|
|
Max trunk capacity
-
|
Max trunk capacity
-
|
|
Payload
485 - 505 kg
|
Payload
410 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Electric, Full Hybrid
|
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
Rear-Wheel Drive, All-Wheel Drive
|
|
Power HP
156 - 354 HP
|
Power HP
313 - 530 HP
|
|
Acceleration 0-100km/h
5.5 - 9.7 s
|
Acceleration 0-100km/h
4.5 - 6.7 s
|
|
Max Speed
-
|
Max Speed
-
|
|
Torque
280 - 515 Nm
|
Torque
380 - 690 Nm
|
|
Number of Cylinders
4
|
Number of Cylinders
-
|
|
Power kW
115 - 260 kW
|
Power kW
230 - 390 kW
|
|
Engine capacity
1,499 cm3
|
Engine capacity
-
|
General |
|
|---|---|
|
Model Year
2026
|
Model Year
2024
|
|
CO2 Efficiency Class
A, D, E
|
CO2 Efficiency Class
A
|
|
Brand
Mercedes-Benz
|
Brand
BYD
|
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.