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Mercedes A Class Saloon vs Porsche 911 Convertible comparison

Compare performance (320 HP vs 711 HP), boot space and price (32,700 £ vs 138,000 £ ) at a glance. Find out which car is the better choice for you – Mercedes A Class Saloon or Porsche 911 Convertible?

Mercedes A Class Saloon vs Porsche 911 Convertible: Key differences

Mercedes A Class Saloon

  • significantly cheaper
  • considerably more efficient
  • only slightly lighter
  • only slightly more trunk space
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Porsche 911 Convertible

  • significantly more power
  • clearly quicker 0–100 km/h
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By Achim Sedelmaier

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

A Class Saloon

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 A Class Saloon is significantly cheaper – starting at 32,700 £ , while the Porsche 911 Convertible costs 138,000 £ . That’s a price difference of around 105,279 £.

Fuel consumption also shows a difference: the Mercedes A Class Saloon uses 0.7 L/100km and is considerably more efficient than the Porsche 911 Convertible with 10.5 L/100km. The difference is about 9.8 L/100km.

911 Convertible

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the Porsche 911 Convertible offers significantly more power – delivering 711 HP compared to 320 HP. That’s roughly 391 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 Mercedes A Class Saloon takes 4.8 s. That’s about 2.2 s quicker.

There’s also a difference in torque: the Porsche 911 Convertible delivers substantially more torque with 800 Nm compared to 450 Nm. That’s about 350 Nm more.

A Class Saloon

Space and Everyday Use:

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

Seats: Mercedes A Class Saloon offers more seats – 5 vs 4.

In terms of curb weight, Mercedes A Class Saloon is only slightly lighter – 1,450 kg compared to 1,572 kg. The difference is around 122 kg.

Looking at boot space, the Mercedes A Class Saloon offers only slightly more boot space – 395 L compared to 373 L. That’s a difference of about 22 L.

When it comes to payload, the Mercedes A Class Saloon carries noticeably more – 490 kg compared to 345 kg. That’s a difference of about 145 kg.

Who wins the race in the data check?

The Mercedes A Class Saloon is decisively ahead 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 £32,700
A Class Saloon

Mercedes A Class Saloon

  • Engine Type Plugin Hybrid, Petrol MHEV, Diesel
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 116 - 320 HP
  • Consumption L/100km 0.7 - 8.1 L/100km
  • Electric Range 88 km
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Frequently compared as well

Mercedes A Class Saloon
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Mercedes A Class Saloon

The Mercedes A‑Class Saloon blends compact practicality with premium flair, wrapping a surprisingly spacious interior in a slick, modern package that feels more grown-up than its hatchback sibling. It’s an ideal choice for city drivers who want Mercedes polish and cutting-edge tech without the ostentation of a larger saloon, and it even manages to make the daily commute feel a little bit special.

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Reviews Mercedes A Class Saloon

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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

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Costs and Consumption
Price
32,700 - 55,900 £
Price
138,000 - 244,500 £
Consumption L/100km
0.7 - 8.1 L/100km
Consumption L/100km
10.5 - 13.7 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
88 km
Electric Range
-
Battery Capacity
12.9 kWh
Battery Capacity
-
co2
16 - 184 g/km
co2
237 - 310 g/km
Fuel tank capacity
35 - 51 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
Convertible
Seats
5
Seats
2 - 4
Doors
4
Doors
-
Curb weight
1,450 - 1,705 kg
Curb weight
1,572 - 1,900 kg
Trunk capacity
345 - 395 L
Trunk capacity
163 - 373 L
Length
4,558 - 4,570 mm
Length
-
Width
1,796 mm
Width
1,852 - 1,900 mm
Height
1,413 - 1,429 mm
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
475 - 490 kg
Payload
195 - 345 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel
Engine Type
Petrol, Full Hybrid
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
116 - 320 HP
Power HP
394 - 711 HP
Acceleration 0-100km/h
4.8 - 9.9 s
Acceleration 0-100km/h
2.6 - 4.7 s
Max Speed
206 - 250 km/h
Max Speed
-
Torque
200 - 450 Nm
Torque
450 - 800 Nm
Number of Cylinders
4
Number of Cylinders
6
Power kW
85 - 235 kW
Power kW
290 - 523 kW
Engine capacity
1,332 - 1,991 cm3
Engine capacity
2,981 - 3,996 cm3

General
Model Year
2,024 - 2,025
Model Year
2,024 - 2,026
CO2 Efficiency Class
B, D, G, E
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
Porsche
What drivetrain options does the Mercedes A Class Saloon have?

The Mercedes A Class Saloon is available as Front-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.