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Aston Martin DBX vs Porsche 911 Convertible comparison

Compare performance (727 HP vs 711 HP), boot space and price (168,900 £ vs 138,000 £ ) at a glance. Find out which car is the better choice for you – Aston Martin DBX or Porsche 911 Convertible?

Aston Martin DBX vs Porsche 911 Convertible: Key differences

Aston Martin DBX

  • marginally more power
  • clearly more trunk space
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Porsche 911 Convertible

  • markedly cheaper
  • clearly more efficient
  • clearly quicker 0–100 km/h
  • clearly lighter
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By Achim Sedelmaier

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

DBX

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.

Porsche 911 Convertible is markedly cheaper – starting at 138,000 £ , while the Aston Martin DBX costs 168,900 £ . That’s a price difference of around 30,857 £.

Fuel consumption also shows a difference: the Porsche 911 Convertible uses 10.5 L/100km and is clearly more efficient than the Aston Martin DBX with 14.2 L/100km. The difference is about 3.7 L/100km.

911 Convertible

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 marginally more power – delivering 727 HP compared to 711 HP. That’s roughly 16 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche 911 Convertible is clearly quicker – completing the sprint in 2.6 s, while the Aston Martin DBX takes 3.3 s. That’s about 0.7 s quicker.

There’s also a difference in torque: the Aston Martin DBX delivers a bit more torque with 900 Nm compared to 800 Nm. That’s about 100 Nm more.

DBX

Space and Everyday Use:

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

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

In terms of curb weight, Porsche 911 Convertible is clearly lighter – 1,572 kg compared to 2,320 kg. The difference is around 748 kg.

Looking at boot space, the Aston Martin DBX offers clearly more boot space – 491 L compared to 373 L. That’s a difference of about 118 L.

When it comes to payload, the Aston Martin DBX carries significantly more – 710 kg compared to 345 kg. That’s a difference of about 365 kg.

Who wins the race in the data check?

The Porsche 911 Convertible holds a narrow 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 £138,000
911 Convertible

Porsche 911 Convertible

  • Engine Type Petrol, Full Hybrid
  • Transmission Manuel, Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 394 - 711 HP
  • Consumption L/100km 10.5 - 13.7 L/100km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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_DBX707_AMR23_Edition_02
Aston_Martin_DBX707_AMR23_Edition_07
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Reviews Aston Martin DBX

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Porsche 911 Convertible

The Porsche 911 Cabriolet transforms the iconic silhouette into an open‑air weapon, offering roof-down glamour and razor-sharp handling that still feels perfectly composed on normal roads. It’s the kind of car that serves daily duties with surprising ease while delivering intoxicating engine music and a grin factor that makes every trip feel like a small victory.

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Reviews Porsche 911 Convertible

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

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Costs and Consumption
Price
168,900 - 213,400 £
Price
138,000 - 244,500 £
Consumption L/100km
14.2 L/100km
Consumption L/100km
10.5 - 13.7 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
323 g/km
co2
237 - 310 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
Convertible
Seats
5
Seats
2 - 4
Doors
-
Doors
-
Curb weight
2,320 kg
Curb weight
1,572 - 1,900 kg
Trunk capacity
491 L
Trunk capacity
163 - 373 L
Length
-
Length
-
Width
1,998 mm
Width
1,852 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
710 kg
Payload
195 - 345 kg

Engine and Performance
Engine Type
Petrol
Engine Type
Petrol, Full Hybrid
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
707 - 727 HP
Power HP
394 - 711 HP
Acceleration 0-100km/h
3.3 s
Acceleration 0-100km/h
2.6 - 4.7 s
Max Speed
-
Max Speed
-
Torque
900 Nm
Torque
450 - 800 Nm
Number of Cylinders
8
Number of Cylinders
6
Power kW
520 - 535 kW
Power kW
290 - 523 kW
Engine capacity
3,982 cm3
Engine capacity
2,981 - 3,996 cm3

General
Model Year
2,022 - 2,025
Model Year
2,024 - 2,026
CO2 Efficiency Class
G
CO2 Efficiency Class
G
Brand
Aston Martin
Brand
Porsche
Is the Aston Martin DBX offered with different drivetrains?

Available configurations include 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.