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Audi A4 Avant vs Porsche 911 Convertible comparison

Compare performance (470 HP vs 711 HP), boot space and price (37,200 £ vs 138,000 £ ) at a glance. Find out which car is the better choice for you – Audi A4 Avant or Porsche 911 Convertible?

Audi A4 Avant vs Porsche 911 Convertible: Key differences

Audi A4 Avant

5 (1 Reviews)
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  • clearly cheaper
  • considerably more efficient
  • noticeably more trunk space
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Porsche 911 Convertible

  • clearly more power
  • clearly quicker 0–100 km/h
  • only slightly lighter
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By Achim Sedelmaier

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

A4 Avant

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Audi A4 Avant is clearly cheaper – starting at 37,200 £ , while the Porsche 911 Convertible costs 138,000 £ . That’s a price difference of around 100,758 £.

Fuel consumption also shows a difference: the Audi A4 Avant uses 4.8 L/100km and is considerably more efficient than the Porsche 911 Convertible with 10.5 L/100km. The difference is about 5.7 L/100km.

911 Convertible

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 Porsche 911 Convertible offers clearly more power – delivering 711 HP compared to 470 HP. That’s roughly 241 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 Audi A4 Avant takes 3.7 s. That’s about 1.1 s quicker.

Looking at top speed, the Audi A4 Avant is only slightly faster – reaching 300 km/h, while the Porsche 911 Convertible tops out at 293 km/h. The difference is around 7 km/h.

There’s also a difference in torque: the Porsche 911 Convertible delivers clearly more torque with 800 Nm compared to 600 Nm. That’s about 200 Nm more.

A4 Avant

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 A4 Avant offers more seats – 5 vs 4.

In terms of curb weight, Porsche 911 Convertible is only slightly lighter – 1,572 kg compared to 1,595 kg. The difference is around 23 kg.

Looking at boot space, the Audi A4 Avant offers noticeably more boot space – 495 L compared to 373 L. That’s a difference of about 122 L.

When it comes to payload, the Audi A4 Avant carries noticeably more – 565 kg compared to 345 kg. That’s a difference of about 220 kg.

Who wins the race in the data check?

The Audi A4 Avant 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 £37,200
A4 Avant

Audi A4 Avant

  • Engine Type : Diesel MHEV, Petrol MHEV, Petrol
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive, Front-Wheel Drive
  • Power HP : 136 - 470 HP
  • Consumption L/100km : 4.8 - 9.7 L/100km
Audi A4 Avant
Porsche 911 Convertible

Costs and Consumption

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Engine and Performance

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Dimensions and Body

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Audi A4 Avant

The Audi A4 Avant blends elegant, understated styling with practical estate versatility, making it a polished choice for drivers who want both poise and generous cargo space. Inside, the cabin feels premium and tech-forward while the composed driving manners turn routine journeys into a quietly satisfying experience—exactly the sensible indulgence buyers will appreciate.

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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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Audi A4 Avant
Porsche 911 Convertible

Costs and Consumption

Price
37,200 - 122,500 £
Price
138,000 - 244,500 £
Consumption L/100km
4.8 - 9.7 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
126 - 220 g/km
co2
237 - 310 g/km
Fuel tank capacity
40 - 58 L
Fuel tank capacity
63 L

Dimensions and Body

Body Type
Estate
Body Type
Convertible
Seats
5
Seats
2 - 4
Doors
5
Doors
2
Curb weight
1,595 - 1,820 kg
Curb weight
1,572 - 1,900 kg
Trunk capacity
495 L
Trunk capacity
163 - 373 L
Length
4,750 - 4,782 mm
Length
4,542 mm
Width
1,842 - 1,866 mm
Width
1,852 - 1,900 mm
Height
1,428 - 1,493 mm
Height
1,292 mm
Max trunk capacity
1,495 L
Max trunk capacity
-
Payload
510 - 565 kg
Payload
195 - 345 kg

Engine and Performance

Engine Type
Diesel MHEV, Petrol MHEV, Petrol
Engine Type
Petrol, Full Hybrid
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
Dual-Clutch Automatic, Automatic Gearbox
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
All-Wheel Drive, Front-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
136 - 470 HP
Power HP
394 - 711 HP
Acceleration 0-100km/h
3.7 - 9.8 s
Acceleration 0-100km/h
2.6 - 4.7 s
Max Speed
210 - 300 km/h
Max Speed
293 km/h
Torque
270 - 600 Nm
Torque
450 - 800 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6
Power kW
100 - 346 kW
Power kW
290 - 523 kW
Engine capacity
1,968 - 2,894 cm3
Engine capacity
2,981 - 3,996 cm3

General

Model Year
2,023 - 2,024
Model Year
2,024 - 2,026
CO2 Efficiency Class
E, F, D, G
CO2 Efficiency Class
G
Brand
Audi
Brand
Porsche
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.