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Mercedes GLB vs Aston Martin DBX comparison

Compare performance (354 HP vs 727 HP), boot space and price (43,200 £ vs 168,900 £ ) at a glance. Find out which car is the better choice for you – Mercedes GLB or Aston Martin DBX?

Mercedes GLB vs Aston Martin DBX: Key differences

Mercedes GLB

3.6 (4 Reviews)
rate
  • considerably cheaper
  • significantly more efficient
  • clearly lighter
  • very slightly more trunk space
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Aston Martin DBX

  • substantially more power
  • substantially quicker 0–100 km/h
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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.

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

GLB

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 considerably cheaper – starting at 43,200 £ , while the Aston Martin DBX costs 168,900 £ . That’s a price difference of around 125,660 £.

Fuel consumption also shows a difference: the Mercedes GLB uses 5.7 L/100km and is significantly more efficient than the Aston Martin DBX with 14.2 L/100km. The difference is about 8.5 L/100km.

DBX

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 Aston Martin DBX offers substantially more power – delivering 727 HP compared to 354 HP. That’s roughly 373 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 GLB takes 5.5 s. That’s about 2.2 s quicker.

There’s also a difference in torque: the Aston Martin DBX delivers clearly more torque with 900 Nm compared to 515 Nm. That’s about 385 Nm more.

GLB

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In terms of curb weight, Mercedes GLB is clearly lighter – 1,840 kg compared to 2,320 kg. The difference is around 480 kg.

Looking at boot space, the Mercedes GLB offers very slightly more boot space – 540 L compared to 491 L. That’s a difference of about 49 L.

When it comes to payload, the Aston Martin DBX carries clearly more – 710 kg compared to 505 kg. That’s a difference of about 205 kg.

Who wins the race in the data check?

The Mercedes GLB holds a decisive overall lead 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
Mercedes GLB
Aston Martin DBX

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.

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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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Mercedes GLB
Aston Martin DBX

Costs and Consumption

Price
43,200 - 62,400 £
Price
168,900 - 213,400 £
Consumption L/100km
5.7 - 6.1 L/100km
Consumption L/100km
14.2 L/100km
Consumption kWh/100km
15.4 - 15.9 kWh/100km
Consumption kWh/100km
-
Electric Range
431 - 631 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
0 - 138 g/km
co2
323 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body

Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,840 - 2,280 kg
Curb weight
2,320 kg
Trunk capacity
540 L
Trunk capacity
491 L
Length
-
Length
-
Width
1,861 mm
Width
1,998 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
485 - 505 kg
Payload
710 kg

Engine and Performance

Engine Type
Electric, Full Hybrid
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
156 - 354 HP
Power HP
707 - 727 HP
Acceleration 0-100km/h
5.5 - 9.7 s
Acceleration 0-100km/h
3.3 s
Max Speed
-
Max Speed
-
Torque
280 - 515 Nm
Torque
900 Nm
Number of Cylinders
4
Number of Cylinders
8
Power kW
115 - 260 kW
Power kW
520 - 535 kW
Engine capacity
1,499 cm3
Engine capacity
3,982 cm3

General

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