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Hyundai IONIQ 5 vs Mercedes GLB comparison
Compare performance (229 HP vs 354 HP), boot space and price (42,800 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – Hyundai IONIQ 5 or Mercedes GLB?
Hyundai IONIQ 5 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.
IONIQ 5
Costs and Efficiency:
Looking at overall running costs, both models reveal some interesting differences in everyday economy.
Hyundai IONIQ 5 is barely cheaper – starting at 42,800 £ , while the Mercedes GLB costs 43,200 £ . That’s a price difference of around 426 £.
In terms of energy consumption, the Mercedes GLB is marginally more efficient: consuming 15.4 kWh/100km compared to 15.6 kWh/100km for the Hyundai IONIQ 5. That’s a difference of about 0.2 kWh/100km.
As for electric range, the Mercedes GLB offers very slightly more range – reaching up to 631 km, about 61 km more than the Hyundai IONIQ 5.
GLB
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 Mercedes GLB offers markedly more power – delivering 354 HP compared to 229 HP. That’s roughly 125 HP more horsepower.
When accelerating from 0 to 100 km/h, the Mercedes GLB is noticeably quicker – completing the sprint in 5.5 s, while the Hyundai IONIQ 5 takes 7.5 s. That’s about 2 s quicker.
There’s also a difference in torque: the Mercedes GLB delivers clearly more torque with 515 Nm compared to 350 Nm. That’s about 165 Nm more.
IONIQ 5
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 only slightly lighter – 1,840 kg compared to 1,955 kg. The difference is around 115 kg.
Looking at boot space, the Mercedes GLB offers very slightly more boot space – 540 L compared to 520 L. That’s a difference of about 20 L.
When it comes to payload, the Hyundai IONIQ 5 carries barely more – 530 kg compared to 505 kg. That’s a difference of about 25 kg.
Who wins the race in the data check?
The Mercedes GLB holds a decisive overall lead 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
Mercedes GLB
Hyundai IONIQ 5
Mercedes GLB
Costs and Consumption
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Engine and Performance
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Dimensions and Body
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Hyundai IONIQ 5
The Hyundai IONIQ 5 looks like a spaceship that moved into suburbia, pairing bold retro‑futuristic styling with a roomy, cleverly laid-out cabin that makes long trips surprisingly comfortable. Its electric character delivers instant, silky acceleration and low running costs, making it a smart, slightly cheeky pick for buyers who want tech, practicality and personality without the drama.
details
Mercedes GLB
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.
details
Hyundai IONIQ 5
Mercedes GLB
Costs and Consumption |
|
|---|---|
|
Price
42,800 - 45,600 £
|
Price
43,200 - 62,400 £
|
|
Consumption L/100km
-
|
Consumption L/100km
5.7 - 6.1 L/100km
|
|
Consumption kWh/100km
15.6 - 16 kWh/100km
|
Consumption kWh/100km
15.4 - 15.9 kWh/100km
|
|
Electric Range
440 - 570 km
|
Electric Range
431 - 631 km
|
|
Battery Capacity
63 - 84 kWh
|
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
5
|
Doors
-
|
|
Curb weight
1,955 - 2,060 kg
|
Curb weight
1,840 - 2,280 kg
|
|
Trunk capacity
520 L
|
Trunk capacity
540 L
|
|
Length
4,655 mm
|
Length
-
|
|
Width
1,890 mm
|
Width
1,861 mm
|
|
Height
1,605 mm
|
Height
-
|
|
Max trunk capacity
1,580 L
|
Max trunk capacity
-
|
|
Payload
515 - 530 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
|
Drive Type
Rear-Wheel Drive, All-Wheel Drive
|
|
Power HP
170 - 229 HP
|
Power HP
156 - 354 HP
|
|
Acceleration 0-100km/h
7.5 - 8.5 s
|
Acceleration 0-100km/h
5.5 - 9.7 s
|
|
Max Speed
185 km/h
|
Max Speed
-
|
|
Torque
350 Nm
|
Torque
280 - 515 Nm
|
|
Number of Cylinders
-
|
Number of Cylinders
4
|
|
Power kW
125 - 168 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
Hyundai
|
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.