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Mercedes GLB vs Suzuki Across comparison

Compare performance (354 HP vs 306 HP), boot space and price (43,200 £ vs 49,900 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLB or Suzuki Across?

Mercedes GLB vs Suzuki Across: Key differences

Mercedes GLB

3.6 (4 Reviews)
rate
  • moderately cheaper
  • somewhat more power
  • significantly more electric range
  • marginally quicker 0–100 km/h
  • slightly lighter
  • marginally more trunk space
details

Suzuki Across

5 (1 Reviews)
rate
  • substantially more efficient
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

GLB

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

Mercedes GLB is moderately cheaper – starting at 43,200 £ , while the Suzuki Across costs 49,900 £ . That’s a price difference of around 6,680 £.

Fuel consumption also shows a difference: the Suzuki Across uses 1 L/100km and is substantially more efficient than the Mercedes GLB with 5.7 L/100km. The difference is about 4.7 L/100km.

As for electric range, the Mercedes GLB offers significantly more range – reaching up to 631 km, about 556 km more than the Suzuki Across.

Across

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 somewhat more power – delivering 354 HP compared to 306 HP. That’s roughly 48 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLB is marginally quicker – completing the sprint in 5.5 s, while the Suzuki Across takes 6 s. That’s about 0.5 s quicker.

GLB

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 slightly lighter – 1,840 kg compared to 2,075 kg. The difference is around 235 kg.

Looking at boot space, the Mercedes GLB offers marginally more boot space – 540 L compared to 490 L. That’s a difference of about 50 L.

When it comes to payload, the Mercedes GLB carries somewhat more – 505 kg compared to 435 kg. That’s a difference of about 70 kg.

Who wins the race in the data check?

The Suzuki Across stands well ahead of its rival 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.

£49,877
Across

Suzuki Across

  • Engine Type Plugin Hybrid
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 306 HP
  • Consumption L/100km 1 L/100km
  • Electric Range 75 km
details

Frequently compared as well

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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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.

details
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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

Suzuki Across

The Suzuki Across is Suzuki's take on a roomy, efficient plug-in SUV handed down from its Toyota cousin, marrying sensible practicality with a polished, grown-up driving character. It won't thrill those chasing sporty drama, but for buyers who value measured refinement, low running costs and lots of usable space, it's an unexpectedly accomplished and subtly premium package.

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Across_überarbeitet_4

Reviews Suzuki Across

5 (1 Reviews)
rate

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

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Suzuki Across

Costs and Consumption
Price
43,200 - 62,400 £
Price
49,900 £
Consumption L/100km
5.7 - 6.1 L/100km
Consumption L/100km
1 L/100km
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Consumption kWh/100km
-
Electric Range
431 - 631 km
Electric Range
75 km
Battery Capacity
-
Battery Capacity
-
co2
0 - 138 g/km
co2
22 g/km
Fuel tank capacity
-
Fuel tank capacity
55 L

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
5
Curb weight
1,840 - 2,280 kg
Curb weight
2,075 kg
Trunk capacity
540 L
Trunk capacity
490 L
Length
-
Length
4,635 mm
Width
1,861 mm
Width
1,855 mm
Height
-
Height
1,690 mm
Max trunk capacity
-
Max trunk capacity
1,604 L
Payload
485 - 505 kg
Payload
435 kg

Engine and Performance
Engine Type
Electric, Full Hybrid
Engine Type
Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
CVT
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
156 - 354 HP
Power HP
306 HP
Acceleration 0-100km/h
5.5 - 9.7 s
Acceleration 0-100km/h
6 s
Max Speed
-
Max Speed
180 km/h
Torque
280 - 515 Nm
Torque
-
Number of Cylinders
4
Number of Cylinders
4
Power kW
115 - 260 kW
Power kW
225 kW
Engine capacity
1,499 cm3
Engine capacity
2,487 cm3

General
Model Year
2026
Model Year
2024
CO2 Efficiency Class
A, D, E
CO2 Efficiency Class
B
Brand
Mercedes-Benz
Brand
Suzuki
What drive types are available for the Mercedes GLB?

Available configurations include Rear-Wheel Drive or 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.