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Kia EV3 vs Mercedes GLB comparison

Compare performance (265 HP vs 354 HP), boot space and price (40,200 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – Kia EV3 or Mercedes GLB?

Kia EV3 vs Mercedes GLB: Key differences

Kia EV3

4.6 (5 Reviews)
rate
  • marginally cheaper
details

Mercedes GLB

3.6 (4 Reviews)
rate
  • clearly more power
  • only slightly more efficient
  • marginally more electric range
  • slightly quicker 0–100 km/h
  • very slightly lighter
  • markedly more trunk space
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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

EV3

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.

Kia EV3 is marginally cheaper – starting at 40,200 £ , while the Mercedes GLB costs 43,200 £ . That’s a price difference of around 3,015 £.

In terms of energy consumption, the Mercedes GLB is only slightly more efficient: consuming 15.4 kWh/100km compared to 15.8 kWh/100km for the Kia EV3. That’s a difference of about 0.4 kWh/100km.

As for electric range, the Mercedes GLB offers marginally more range – reaching up to 631 km, about 59 km more than the Kia EV3.

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 Mercedes GLB offers clearly more power – delivering 354 HP compared to 265 HP. That’s roughly 89 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLB is slightly quicker – completing the sprint in 5.5 s, while the Kia EV3 takes 6.6 s. That’s about 1.1 s quicker.

There’s also a difference in torque: the Mercedes GLB delivers visibly more torque with 515 Nm compared to 385 Nm. That’s about 130 Nm more.

EV3

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, Mercedes GLB is very slightly lighter – 1,840 kg compared to 1,995 kg. The difference is around 155 kg.

Looking at boot space, the Mercedes GLB offers markedly more boot space – 540 L compared to 413 L. That’s a difference of about 127 L.

When it comes to payload, the Mercedes GLB carries marginally more – 505 kg compared to 485 kg. That’s a difference of about 20 kg.

Who wins the race in the data check?

The Mercedes GLB is clearly superior 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 £43,200
GLB

Mercedes GLB

  • Engine Type Electric, Full Hybrid
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 156 - 354 HP
  • Consumption L/100km 5.7 - 6.1 L/100km
  • Consumption kWh/100km 15.4 - 15.9 kWh/100km
  • Electric Range 431 - 631 km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Kia EV3

The Kia EV3 is a stylish, user-friendly electric crossover that focuses on practicality and a roomy, well-equipped cabin. It delivers a comfortable ride with intuitive technology and efficient everyday performance, making it a sensible choice for city and family use.

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Reviews Kia EV3

4.6 (5 Reviews)
rate
pedro
8 May 2026, 11:01:53

Aesthetically it seems nicer to me, and I think it's better soundproofed.

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
José
24 Dec 2025, 17:42:54

A good car for a small family. Easy and practical.

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

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.

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Reviews Mercedes GLB

3.6 (4 Reviews)
rate
Hans
19 Feb 2026, 02:39:00

Great car — very satisfied with the GLB 250 4MATIC.

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

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Kia EV3
Mercedes GLB

Costs and Consumption
Price
40,200 - 43,900 £
Price
43,200 - 62,400 £
Consumption L/100km
-
Consumption L/100km
5.7 - 6.1 L/100km
Consumption kWh/100km
15.8 kWh/100km
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Electric Range
572 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
5
Seats
5
Doors
-
Doors
-
Curb weight
1,995 kg
Curb weight
1,840 - 2,280 kg
Trunk capacity
413 L
Trunk capacity
540 L
Length
-
Length
-
Width
1,850 mm
Width
1,861 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
485 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
All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
265 HP
Power HP
156 - 354 HP
Acceleration 0-100km/h
6.6 s
Acceleration 0-100km/h
5.5 - 9.7 s
Max Speed
-
Max Speed
-
Torque
385 Nm
Torque
280 - 515 Nm
Number of Cylinders
-
Number of Cylinders
4
Power kW
195 kW
Power kW
115 - 260 kW
Engine capacity
-
Engine capacity
1,499 cm3

General
Model Year
2026
Model Year
2026
CO2 Efficiency Class
A
CO2 Efficiency Class
A, D, E
Brand
Kia
Brand
Mercedes-Benz
What drivetrain options does the Kia EV3 have?

The Kia EV3 is available as 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.