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Mercedes GLB vs Hyundai IONIQ 9 - Differences and prices compared

Compare performance (354 HP vs 428 HP), boot space and price (50600 £ vs 58700 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLB or Hyundai IONIQ 9?

Mercedes GLB

3.2 (3 Reviews)
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Hyundai IONIQ 9

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

GLB

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Mercedes GLB has a to a small extent advantage in terms of price – it starts at 50600 £ , while the Hyundai IONIQ 9 costs 58700 £ . That’s a price difference of around 8102 £.

In terms of energy consumption, the advantage goes to the Mercedes GLB: with 15.80 kWh per 100 km, it’s noticeable more efficient than the Hyundai IONIQ 9 with 19.90 kWh. That’s a difference of about 4.10 kWh.

As for electric range, the Mercedes GLB performs minimal better – achieving up to 631 km, about 11 km more than the Hyundai IONIQ 9.

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 Hyundai IONIQ 9 has a slightly edge – offering 428 HP compared to 354 HP. That’s roughly 74 HP more horsepower.

In acceleration from 0 to 100 km/h, the Hyundai IONIQ 9 is hardly perceptible quicker – completing the sprint in 5.20 s, while the Mercedes GLB takes 5.50 s. That’s about 0.30 s faster.

There’s also a difference in torque: Hyundai IONIQ 9 pulls distinct stronger with 700 Nm compared to 515 Nm. That’s about 185 Nm difference.

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.

Seats: Hyundai IONIQ 9 offers clearly perceptible more seating capacity – 7 vs 5.

In curb weight, Mercedes GLB is slightly lighter – 2200 kg compared to 2594 kg. The difference is around 394 kg.

In terms of boot space, the Mercedes GLB offers noticeable more room – 540 L compared to 338 L. That’s a difference of about 202 L.

When it comes to payload, Hyundai IONIQ 9 evident takes the win – 643 kg compared to 500 kg. That’s a difference of about 143 kg.

Who wins the race in the data check?

The Hyundai IONIQ 9 is narrowly 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.

Mercedes GLB
Hyundai IONIQ 9

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £58,700
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Hyundai IONIQ 9

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 218 - 428 HP
  • Consumption kWh/100km : 19.9 - 20.6 kWh
  • Electric Range : 600 - 620 km
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Mercedes GLB

3.2 (3 Reviews)
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The Mercedes GLB is a practical compact SUV that mixes boxy, family-friendly space with premium German polish, making it an appealing choice for buyers who want usefulness without pretension. It drives with a confident, composed feel and somehow manages to look both rugged and refined — the grown-up SUV that still likes to have fun.

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Hyundai IONIQ 9

The Hyundai IONIQ 9 is a bold step forward in the automotive world, combining cutting-edge electric technology with a sleek and modern design. This model stands out with its spacious interior and advanced features, ensuring both comfort and convenience for drivers and passengers alike. As Hyundai pushes the envelope in eco-friendly innovation, the IONIQ 9 represents the future of sustainable driving with its impressive range and performance capabilities.

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Reviews Mercedes GLB

3.2 (3 Reviews)
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Reviews Hyundai IONIQ 9

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Mercedes GLB
Hyundai IONIQ 9

Costs and Consumption
Price
50600 - 62400 £
Price
58700 - 74400 £
Consumption L/100km
-
Consumption L/100km
-
Consumption kWh/100km
15.8 - 15.9 kWh
Consumption kWh/100km
19.9 - 20.6 kWh
Electric Range
614 - 631 km
Electric Range
600 - 620 km
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
0 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
2200 - 2280 kg
Curb weight
2594 - 2689 kg
Trunk capacity
540 L
Trunk capacity
338 L
Length
-
Length
-
Width
1861 mm
Width
1980 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
500 kg
Payload
586 - 643 kg

Engine and Performance
Engine Type
Electric
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
272 - 354 HP
Power HP
218 - 428 HP
Acceleration 0-100km/h
5.5 - 7.4 s
Acceleration 0-100km/h
5.2 - 9.4 s
Max Speed
-
Max Speed
-
Torque
335 - 515 Nm
Torque
350 - 700 Nm
Number of Cylinders
-
Number of Cylinders
-
Power kW
200 - 260 kW
Power kW
160 - 315 kW
Engine capacity
-
Engine capacity
-

General
Model Year
2026
Model Year
2025
CO2 Efficiency Class
A
CO2 Efficiency Class
A
Brand
Mercedes-Benz
Brand
Hyundai

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What drivetrain options does the Mercedes GLB have?

Available configurations include Rear-Wheel Drive or All-Wheel Drive.

The prices shown are estimates based on German list prices, adjusted for local VAT. Local registration taxes (e.g. NoVA, BPM or CO2 malus) are not included. This information is not legally binding.