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Kia EV9 vs Mercedes GLB comparison
Compare performance (508 HP vs 354 HP), boot space and price (54,600 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – Kia EV9 or Mercedes GLB?
Kia EV9 vs Mercedes GLB: 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.
EV9
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.
Mercedes GLB is markedly cheaper – starting at 43,200 £ , while the Kia EV9 costs 54,600 £ . That’s a price difference of around 11,394 £.
In terms of energy consumption, the Mercedes GLB is clearly more efficient: consuming 15.4 kWh/100km compared to 19.5 kWh/100km for the Kia EV9. That’s a difference of about 4.1 kWh/100km.
As for electric range, the Mercedes GLB offers moderately more range – reaching up to 631 km, about 68 km more than the Kia EV9.
GLB
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 Kia EV9 offers visibly more power – delivering 508 HP compared to 354 HP. That’s roughly 154 HP more horsepower.
When accelerating from 0 to 100 km/h, the Kia EV9 is a bit quicker – completing the sprint in 4.6 s, while the Mercedes GLB takes 5.5 s. That’s about 0.9 s quicker.
There’s also a difference in torque: the Kia EV9 delivers clearly more torque with 740 Nm compared to 515 Nm. That’s about 225 Nm more.
EV9
Space and Everyday Use:
Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.
Seats: Kia EV9 offers more seats – 7 vs 5.
In terms of curb weight, Mercedes GLB is noticeably lighter – 1,840 kg compared to 2,392 kg. The difference is around 552 kg.
Looking at boot space, the Mercedes GLB offers markedly more boot space – 540 L compared to 333 L. That’s a difference of about 207 L.
When it comes to payload, the Kia EV9 carries slightly more – 615 kg compared to 505 kg. That’s a difference of about 110 kg.
Who wins the race in the data check?
The Kia EV9 has the upper hand 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 £54,600
Kia EV9
Kia EV9
Mercedes GLB
Costs and Consumption
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Engine and Performance
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Dimensions and Body
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Kia EV9
The Kia EV9 is a bold, boxy electric SUV that looks like it could swallow your luggage and the in‑laws, with an interior that feels more lounge than cockpit and a presence that makes smaller rivals suddenly feel shy. On the road it delivers calm long‑distance composure with enough shove to keep overtakes effortless, and its tech and practicality make it an easy, sensible choice for buyers who want electric without compromise.
details
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
Kia EV9
Mercedes GLB
Costs and Consumption |
|
|---|---|
|
Price
54,600 - 78,400 £
|
Price
43,200 - 62,400 £
|
|
Consumption L/100km
-
|
Consumption L/100km
5.7 - 6.1 L/100km
|
|
Consumption kWh/100km
19.5 - 22.8 kWh/100km
|
Consumption kWh/100km
15.4 - 15.9 kWh/100km
|
|
Electric Range
443 - 563 km
|
Electric Range
431 - 631 km
|
|
Battery Capacity
-
|
Battery Capacity
-
|
|
co2
0 g/km
|
co2
0 - 138 g/km
|
|
Fuel tank capacity
-
|
Fuel tank capacity
-
|
Dimensions and Body |
|
|---|---|
|
Body Type
SUV
|
Body Type
SUV
|
|
Seats
6 - 7
|
Seats
5
|
|
Doors
-
|
Doors
-
|
|
Curb weight
2,392 - 2,664 kg
|
Curb weight
1,840 - 2,280 kg
|
|
Trunk capacity
333 L
|
Trunk capacity
540 L
|
|
Length
-
|
Length
-
|
|
Width
1,980 mm
|
Width
1,861 mm
|
|
Height
-
|
Height
-
|
|
Max trunk capacity
-
|
Max trunk capacity
-
|
|
Payload
542 - 615 kg
|
Payload
485 - 505 kg
|
Engine and Performance |
|
|---|---|
|
Engine Type
Electric
|
Engine Type
Electric, Full Hybrid
|
|
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
204 - 508 HP
|
Power HP
156 - 354 HP
|
|
Acceleration 0-100km/h
4.6 - 9.4 s
|
Acceleration 0-100km/h
5.5 - 9.7 s
|
|
Max Speed
-
|
Max Speed
-
|
|
Torque
350 - 740 Nm
|
Torque
280 - 515 Nm
|
|
Number of Cylinders
-
|
Number of Cylinders
4
|
|
Power kW
150 - 374 kW
|
Power kW
115 - 260 kW
|
|
Engine capacity
-
|
Engine capacity
1,499 cm3
|
General |
|
|---|---|
|
Model Year
2025
|
Model Year
2026
|
|
CO2 Efficiency Class
A
|
CO2 Efficiency Class
A, D, E
|
|
Brand
Kia
|
Brand
Mercedes-Benz
|
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.