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Genesis G90 vs Mercedes GLB comparison

Compare performance (415 HP vs 354 HP), boot space and price (96,200 £ vs 43,200 £ ) at a glance. Find out which car is the better choice for you – Genesis G90 or Mercedes GLB?

Genesis G90 vs Mercedes GLB: Key differences

Genesis G90

  • somewhat more power
  • only slightly quicker 0–100 km/h
details

Mercedes GLB

3.6 (4 Reviews)
rate
  • substantially cheaper
  • significantly more efficient
  • noticeably lighter
  • markedly more trunk space
details

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

G90

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 substantially cheaper – starting at 43,200 £ , while the Genesis G90 costs 96,200 £ . That’s a price difference of around 52,957 £.

Fuel consumption also shows a difference: the Mercedes GLB uses 5.7 L/100km and is significantly more efficient than the Genesis G90 with 11 L/100km. The difference is about 5.3 L/100km.

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 Genesis G90 offers somewhat more power – delivering 415 HP compared to 354 HP. That’s roughly 61 HP more horsepower.

When accelerating from 0 to 100 km/h, the Genesis G90 is only slightly quicker – completing the sprint in 5.2 s, while the Mercedes GLB takes 5.5 s. That’s about 0.3 s quicker.

There’s also a difference in torque: the Genesis G90 delivers very slightly more torque with 549 Nm compared to 515 Nm. That’s about 34 Nm more.

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 noticeably lighter – 1,840 kg compared to 2,260 kg. The difference is around 420 kg.

Looking at boot space, the Mercedes GLB offers markedly more boot space – 540 L compared to 368 L. That’s a difference of about 172 L.

Maximum payload is identical – both can carry up to 505 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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Frequently compared as well

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Genesis G90
Mercedes GLB

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Genesis G90

The Genesis G90 is the brand's flagship limousine, wrapping passengers in a serene cabin that feels bespoke and quietly confident. It delivers a cultured ride, sumptuous materials and clever tech smarts, all served with an understated swagger that makes rear-seat commuters feel like they've finally arrived.

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Reviews Genesis G90

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

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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Genesis G90
Mercedes GLB

Costs and Consumption
Price
96,200 - 108,200 £
Price
43,200 - 62,400 £
Consumption L/100km
11 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
248 g/km
co2
0 - 138 g/km
Fuel tank capacity
73 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
SUV
Seats
4 - 5
Seats
5
Doors
4
Doors
-
Curb weight
2,260 - 2,470 kg
Curb weight
1,840 - 2,280 kg
Trunk capacity
368 L
Trunk capacity
540 L
Length
5,275 - 5,465 mm
Length
-
Width
1,930 mm
Width
1,861 mm
Height
1,490 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
370 - 505 kg
Payload
485 - 505 kg

Engine and Performance
Engine Type
Petrol MHEV
Engine Type
Electric, Full Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
415 HP
Power HP
156 - 354 HP
Acceleration 0-100km/h
5.2 - 5.4 s
Acceleration 0-100km/h
5.5 - 9.7 s
Max Speed
250 km/h
Max Speed
-
Torque
549 Nm
Torque
280 - 515 Nm
Number of Cylinders
6
Number of Cylinders
4
Power kW
305 kW
Power kW
115 - 260 kW
Engine capacity
3,470 cm3
Engine capacity
1,499 cm3

General
Model Year
2023
Model Year
2026
CO2 Efficiency Class
G
CO2 Efficiency Class
A, D, E
Brand
Genesis
Brand
Mercedes-Benz
Is the Genesis G90 offered with different drivetrains?

The Genesis G90 is offered with 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.