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Mercedes GLS vs Aston Martin DBX comparison

Compare performance (404 HP vs 727 HP), boot space and price (92,700 £ vs 168,900 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLS or Aston Martin DBX?

Mercedes GLS vs Aston Martin DBX: Key differences

Mercedes GLS

  • considerably cheaper
  • substantially more efficient
details

Aston Martin DBX

  • substantially more power
  • substantially quicker 0–100 km/h
  • a bit lighter
  • clearly more trunk space
details

By Achim Sedelmaier

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

GLS

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 GLS is considerably cheaper – starting at 92,700 £ , while the Aston Martin DBX costs 168,900 £ . That’s a price difference of around 76,195 £.

Fuel consumption also shows a difference: the Mercedes GLS uses 7.9 L/100km and is substantially more efficient than the Aston Martin DBX with 14.2 L/100km. The difference is about 6.3 L/100km.

DBX

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 Aston Martin DBX offers substantially more power – delivering 727 HP compared to 404 HP. That’s roughly 323 HP more horsepower.

When accelerating from 0 to 100 km/h, the Aston Martin DBX is substantially quicker – completing the sprint in 3.3 s, while the Mercedes GLS takes 5.6 s. That’s about 2.3 s quicker.

There’s also a difference in torque: the Aston Martin DBX delivers somewhat more torque with 900 Nm compared to 750 Nm. That’s about 150 Nm more.

GLS

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Seats: Mercedes GLS offers more seats – 7 vs 5.

In terms of curb weight, Aston Martin DBX is a bit lighter – 2,320 kg compared to 2,580 kg. The difference is around 260 kg.

Looking at boot space, the Aston Martin DBX offers clearly more boot space – 491 L compared to 355 L. That’s a difference of about 136 L.

When it comes to payload, the Mercedes GLS carries moderately more – 820 kg compared to 710 kg. That’s a difference of about 110 kg.

Who wins the race in the data check?

The Aston Martin DBX has only a minor advantage 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 £168,900
DBX

Aston Martin DBX

  • Engine Type Petrol
  • Transmission Automatic
  • Drive Type All-Wheel Drive
  • Power HP 707 - 727 HP
  • Consumption L/100km 14.2 L/100km
details

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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.

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Reviews Mercedes GLS

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Aston Martin DBX

With the DBX, Aston Martin has wrapped its trademark sports-car drama into a high-riding package that looks like it could sprint off the driveway and into a gala, while the cabin pampers occupants with handcrafted leather and theatrical attention to detail. Behind the wheel it feels like a grand tourer that learned how to tackle country roads, serving up surprising agility for such a stately presence and keeping rivals honest with its rarefied blend of performance and luxury.

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Aston Martin DBX

Costs and Consumption
Price
92,700 - 104,600 £
Price
168,900 - 213,400 £
Consumption L/100km
7.9 - 9.9 L/100km
Consumption L/100km
14.2 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
206 - 226 g/km
co2
323 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
7
Seats
5
Doors
-
Doors
-
Curb weight
2,580 - 2,670 kg
Curb weight
2,320 kg
Trunk capacity
355 L
Trunk capacity
491 L
Length
-
Length
-
Width
1,956 mm
Width
1,998 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
810 - 820 kg
Payload
710 kg

Engine and Performance
Engine Type
Petrol MHEV, Diesel MHEV
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
336 - 404 HP
Power HP
707 - 727 HP
Acceleration 0-100km/h
5.6 - 6.2 s
Acceleration 0-100km/h
3.3 s
Max Speed
-
Max Speed
-
Torque
560 - 750 Nm
Torque
900 Nm
Number of Cylinders
6
Number of Cylinders
8
Power kW
247 - 297 kW
Power kW
520 - 535 kW
Engine capacity
2,989 - 2,999 cm3
Engine capacity
3,982 cm3

General
Model Year
2026
Model Year
2,022 - 2,025
CO2 Efficiency Class
G
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
Aston Martin
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.