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Audi A3 Limousine vs Porsche 911 Convertible comparison

Compare performance (400 HP vs 711 HP), boot space and price (27,700 £ vs 138,000 £ ) at a glance. Find out which car is the better choice for you – Audi A3 Limousine or Porsche 911 Convertible?

Audi A3 Limousine vs Porsche 911 Convertible: Key differences

Audi A3 Limousine

  • considerably cheaper
  • substantially more efficient
  • a bit lighter
  • moderately more trunk space
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Porsche 911 Convertible

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

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

A3 Limousine

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.

Audi A3 Limousine is considerably cheaper – starting at 27,700 £ , while the Porsche 911 Convertible costs 138,000 £ . That’s a price difference of around 110,315 £.

Fuel consumption also shows a difference: the Audi A3 Limousine uses 4.4 L/100km and is substantially more efficient than the Porsche 911 Convertible with 10.5 L/100km. The difference is about 6.1 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 Porsche 911 Convertible offers substantially more power – delivering 711 HP compared to 400 HP. That’s roughly 311 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche 911 Convertible is substantially quicker – completing the sprint in 2.6 s, while the Audi A3 Limousine takes 3.8 s. That’s about 1.2 s quicker.

There’s also a difference in torque: the Porsche 911 Convertible delivers clearly more torque with 800 Nm compared to 500 Nm. That’s about 300 Nm more.

A3 Limousine

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: Audi A3 Limousine offers more seats – 5 vs 4.

In terms of curb weight, Audi A3 Limousine is a bit lighter – 1,345 kg compared to 1,572 kg. The difference is around 227 kg.

Looking at boot space, the Audi A3 Limousine offers moderately more boot space – 425 L compared to 373 L. That’s a difference of about 52 L.

When it comes to payload, the Audi A3 Limousine carries clearly more – 520 kg compared to 345 kg. That’s a difference of about 175 kg.

Who wins the race in the data check?

The Audi A3 Limousine 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 £27,700
A3 Limousine

Audi A3 Limousine

  • Engine Type Petrol, Petrol MHEV, Diesel
  • Transmission Manuel, Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 116 - 400 HP
  • Consumption L/100km 4.4 - 9.2 L/100km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi A3 Limousine

The Audi A3 sedan dresses up compact practicality in clean, premium lines, giving you the feel of an upscale small car with a proper boot. Inside it’s neat, driver-focused and nicely finished — a sensible, enjoyable daily companion that prefers poise over showy theatrics.

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Reviews Audi A3 Limousine

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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
27,700 - 94,300 £
Price
138,000 - 244,500 £
Consumption L/100km
4.4 - 9.2 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
115 - 208 g/km
co2
237 - 310 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Sedan
Body Type
Convertible
Seats
5
Seats
2 - 4
Doors
-
Doors
-
Curb weight
1,345 - 1,640 kg
Curb weight
1,572 - 1,900 kg
Trunk capacity
321 - 425 L
Trunk capacity
163 - 373 L
Length
-
Length
-
Width
1,816 - 1,851 mm
Width
1,852 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
415 - 520 kg
Payload
195 - 345 kg

Engine and Performance
Engine Type
Petrol, Petrol MHEV, Diesel
Engine Type
Petrol, Full Hybrid
Transmission
Manuel, Automatic
Transmission
Manuel, Automatic
Transmission Detail
Manual Gearbox, 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 - 400 HP
Power HP
394 - 711 HP
Acceleration 0-100km/h
3.8 - 10.1 s
Acceleration 0-100km/h
2.6 - 4.7 s
Max Speed
-
Max Speed
-
Torque
220 - 500 Nm
Torque
450 - 800 Nm
Number of Cylinders
4 - 5
Number of Cylinders
6
Power kW
85 - 294 kW
Power kW
290 - 523 kW
Engine capacity
1,498 - 2,480 cm3
Engine capacity
2,981 - 3,996 cm3

General
Model Year
2,025 - 2,026
Model Year
2,024 - 2,026
CO2 Efficiency Class
D, C, E, G
CO2 Efficiency Class
G
Brand
Audi
Brand
Porsche
What drive types are available for the Audi A3 Limousine?

The Audi A3 Limousine 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.