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Hyundai i30 vs Mercedes GLB comparison

Compare performance (150 HP vs 354 HP), boot space and price (24,600 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – Hyundai i30 or Mercedes GLB?

Hyundai i30 vs Mercedes GLB: Key differences

Hyundai i30

4.4 (1 Reviews)
rate
  • substantially cheaper
  • clearly lighter
details

Mercedes GLB

3.6 (4 Reviews)
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  • considerably more power
  • only slightly more efficient
  • significantly quicker 0–100 km/h
  • visibly 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

i30

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.

Hyundai i30 is substantially cheaper – starting at 24,600 £ , while the Mercedes GLB costs 43,200 £ . That’s a price difference of around 18,640 £.

Fuel consumption also shows a difference: the Mercedes GLB uses 5.7 L/100km and is only slightly more efficient than the Hyundai i30 with 5.9 L/100km. The difference is about 0.2 L/100km.

GLB

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 Mercedes GLB offers considerably more power – delivering 354 HP compared to 150 HP. That’s roughly 204 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLB is significantly quicker – completing the sprint in 5.5 s, while the Hyundai i30 takes 8.9 s. That’s about 3.4 s quicker.

There’s also a difference in torque: the Mercedes GLB delivers considerably more torque with 515 Nm compared to 250 Nm. That’s about 265 Nm more.

i30

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, Hyundai i30 is clearly lighter – 1,315 kg compared to 1,840 kg. The difference is around 525 kg.

Looking at boot space, the Mercedes GLB offers visibly more boot space – 540 L compared to 395 L. That’s a difference of about 145 L.

When it comes to payload, the Mercedes GLB carries barely 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 far ahead 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

Hyundai i30

The Hyundai i30 proves that sensible can also be stylish, offering a confident driving character wrapped in neat, modern design. It serves up a roomy, well-equipped cabin and composed ride that make everyday motoring feel like a clever purchase rather than a compromise.

details
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Reviews Hyundai i30

4.4 (1 Reviews)
rate

No reviews yet. Share your experience and help others decide.

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.

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Reviews Mercedes GLB

3.6 (4 Reviews)
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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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Hyundai i30
Mercedes GLB

Costs and Consumption
Price
24,600 - 31,400 £
Price
43,200 - 62,400 £
Consumption L/100km
5.9 - 6.3 L/100km
Consumption L/100km
5.7 - 6.1 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Electric Range
-
Electric Range
431 - 631 km
Battery Capacity
-
Battery Capacity
-
co2
134 - 142 g/km
co2
0 - 138 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,315 - 1,435 kg
Curb weight
1,840 - 2,280 kg
Trunk capacity
395 L
Trunk capacity
540 L
Length
-
Length
-
Width
1,795 mm
Width
1,861 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
445 - 485 kg
Payload
485 - 505 kg

Engine and Performance
Engine Type
Petrol
Engine Type
Electric, Full Hybrid
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
115 - 150 HP
Power HP
156 - 354 HP
Acceleration 0-100km/h
8.9 - 11.7 s
Acceleration 0-100km/h
5.5 - 9.7 s
Max Speed
-
Max Speed
-
Torque
172 - 250 Nm
Torque
280 - 515 Nm
Number of Cylinders
3 - 4
Number of Cylinders
4
Power kW
85 - 110 kW
Power kW
115 - 260 kW
Engine capacity
998 - 1,598 cm3
Engine capacity
1,499 cm3

General
Model Year
2026
Model Year
2026
CO2 Efficiency Class
D, E
CO2 Efficiency Class
A, D, E
Brand
Hyundai
Brand
Mercedes-Benz
Is the Hyundai i30 offered with different drivetrains?

The Hyundai i30 is offered with Front-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.