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Mercedes SL Class vs Aston Martin DBX comparison

Compare performance (816 HP vs 727 HP), boot space and price (112,700 £ vs 168,900 £ ) at a glance. Find out which car is the better choice for you – Mercedes SL Class or Aston Martin DBX?

Mercedes SL Class vs Aston Martin DBX: Key differences

Mercedes SL Class

  • considerably cheaper
  • moderately more power
  • significantly more efficient
  • moderately quicker 0–100 km/h
  • markedly lighter
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Aston Martin DBX

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By Achim Sedelmaier

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

SL Class

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

Mercedes SL Class is considerably cheaper – starting at 112,700 £ , while the Aston Martin DBX costs 168,900 £ . That’s a price difference of around 56,153 £.

Fuel consumption also shows a difference: the Mercedes SL Class uses 9 L/100km and is significantly more efficient than the Aston Martin DBX with 14.2 L/100km. The difference is about 5.2 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 Mercedes SL Class offers moderately more power – delivering 816 HP compared to 727 HP. That’s roughly 89 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes SL Class is moderately quicker – completing the sprint in 2.9 s, while the Aston Martin DBX takes 3.3 s. That’s about 0.4 s quicker.

There’s also a difference in torque: the Mercedes SL Class delivers noticeably more torque with 1,420 Nm compared to 900 Nm. That’s about 520 Nm more.

SL Class

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: Aston Martin DBX offers more seats – 5 vs 4.

In terms of curb weight, Mercedes SL Class is markedly lighter – 1,810 kg compared to 2,320 kg. The difference is around 510 kg.

When it comes to payload, the Aston Martin DBX carries significantly more – 710 kg compared to 375 kg. That’s a difference of about 335 kg.

Who wins the race in the data check?

The Mercedes SL Class 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 £112,700
SL Class

Mercedes SL Class

  • Engine Type : Petrol MHEV, Petrol, Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 381 - 816 HP
  • Consumption L/100km : 9 - 13.6 L/100km
  • Electric Range : 12 km
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Mercedes SL Class
Aston Martin DBX

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes SL Class

The Mercedes SL blends timeless elegance with a cheeky sense of occasion, its retractable roof turning any commute into a small celebratory parade. Behind the wheel it behaves like a grown-up sports car that prefers comfort and presence over headline-grabbing bravado, making it a tempting choice for buyers who want to arrive in style.

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Reviews Mercedes SL Class

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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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Reviews Aston Martin DBX

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Mercedes SL Class
Aston Martin DBX

Costs and Consumption
Price
112,700 - 219,300 £
Price
168,900 - 213,400 £
Consumption L/100km
9 - 13.6 L/100km
Consumption L/100km
14.2 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
12 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
206 - 309 g/km
co2
323 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Roadster
Body Type
SUV
Seats
4
Seats
5
Doors
-
Doors
-
Curb weight
1,810 - 2,195 kg
Curb weight
2,320 kg
Trunk capacity
-
Trunk capacity
491 L
Length
-
Length
-
Width
1,915 mm
Width
1,998 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
145 - 375 kg
Payload
710 kg

Engine and Performance
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
381 - 816 HP
Power HP
707 - 727 HP
Acceleration 0-100km/h
2.9 - 4.9 s
Acceleration 0-100km/h
3.3 s
Max Speed
-
Max Speed
-
Torque
480 - 1,420 Nm
Torque
900 Nm
Number of Cylinders
4 - 8
Number of Cylinders
8
Power kW
280 - 600 kW
Power kW
520 - 535 kW
Engine capacity
1,991 - 3,982 cm3
Engine capacity
3,982 cm3

General
Model Year
2025
Model Year
2,022 - 2,025
CO2 Efficiency Class
G
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
Aston Martin
What drive types are available for the Mercedes SL Class?

The Mercedes SL Class is offered with 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.