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Mercedes GLS vs Subaru Outback comparison

Compare performance (404 HP vs 169 HP), boot space and price (92,700 £ vs 40,000 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLS or Subaru Outback?

Mercedes GLS vs Subaru Outback: Key differences

Mercedes GLS

  • clearly more power
  • marginally more efficient
  • substantially quicker 0–100 km/h
details

Subaru Outback

4.6 (1 Reviews)
rate
  • clearly cheaper
  • substantially lighter
  • noticeably more trunk space
details

By Achim Sedelmaier

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

GLS

Costs and Efficiency:

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

Subaru Outback is clearly cheaper – starting at 40,000 £ , while the Mercedes GLS costs 92,700 £ . That’s a price difference of around 52,642 £.

Fuel consumption also shows a difference: the Mercedes GLS uses 7.9 L/100km and is marginally more efficient than the Subaru Outback with 8.6 L/100km. The difference is about 0.7 L/100km.

Outback

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 GLS offers clearly more power – delivering 404 HP compared to 169 HP. That’s roughly 235 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes GLS is substantially quicker – completing the sprint in 5.6 s, while the Subaru Outback takes 10.2 s. That’s about 4.6 s quicker.

There’s also a difference in torque: the Mercedes GLS delivers considerably more torque with 750 Nm compared to 252 Nm. That’s about 498 Nm more.

GLS

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: Mercedes GLS offers more seats – 7 vs 5.

In terms of curb weight, Subaru Outback is substantially lighter – 1,643 kg compared to 2,580 kg. The difference is around 937 kg.

Looking at boot space, the Subaru Outback offers noticeably more boot space – 561 L compared to 355 L. That’s a difference of about 206 L.

When it comes to payload, the Mercedes GLS carries markedly more – 820 kg compared to 557 kg. That’s a difference of about 263 kg.

Who wins the race in the data check?

The Mercedes GLS 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.

from £92,700
GLS

Mercedes GLS

  • Engine Type Petrol MHEV, Diesel MHEV
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 336 - 404 HP
  • Consumption L/100km 7.9 - 9.9 L/100km
details

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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes GLS

The GLS — usually just called the GLS — is Mercedes' flagship SUV, wrapping limousine-like comfort and commanding road presence into a smart, family-ready package. It pampers occupants with a hushed cabin, premium materials and intuitive tech, while still managing to feel confident and a little indulgent on the daily commute.

details
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19C0481_007
19C0483_036
19C0480_047
18C1072_111

Reviews Mercedes GLS

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

Subaru Outback

The Subaru Outback is the do-it-all wagon for buyers who want SUV capability without the SUV bulk, blending rugged confidence with everyday civility. It's practical, dependable, and built to shrug off rough gravel tracks or rainy commutes with a grin — ideal for buyers who actually use their vehicles, not just park them for show.

details
csm_Outback_2.5i_Platinum_Modelljahr_2021_108__742a1b80db

Reviews Subaru Outback

4.6 (1 Reviews)
rate

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

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Mercedes GLS
Subaru Outback

Costs and Consumption
Price
92,700 - 104,600 £
Price
40,000 - 44,400 £
Consumption L/100km
7.9 - 9.9 L/100km
Consumption L/100km
8.6 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
206 - 226 g/km
co2
193 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
Estate
Seats
7
Seats
5
Doors
-
Doors
-
Curb weight
2,580 - 2,670 kg
Curb weight
1,643 - 1,676 kg
Trunk capacity
355 L
Trunk capacity
561 L
Length
-
Length
-
Width
1,956 mm
Width
1,875 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
810 - 820 kg
Payload
524 - 557 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
CVT
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
336 - 404 HP
Power HP
169 HP
Acceleration 0-100km/h
5.6 - 6.2 s
Acceleration 0-100km/h
10.2 s
Max Speed
-
Max Speed
-
Torque
560 - 750 Nm
Torque
252 Nm
Number of Cylinders
6
Number of Cylinders
4
Power kW
247 - 297 kW
Power kW
124 kW
Engine capacity
2,989 - 2,999 cm3
Engine capacity
2,498 cm3

General
Model Year
2026
Model Year
2024
CO2 Efficiency Class
G
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
Subaru
Is the Mercedes GLS offered with different drivetrains?

The Mercedes GLS is available as 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.