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Audi A5 Sportback vs Porsche 911 Coupe comparison

Compare performance (639 HP vs 711 HP), boot space and price (40,200 £ vs 125,800 £ ) at a glance. Find out which car is the better choice for you – Audi A5 Sportback or Porsche 911 Coupe?

Audi A5 Sportback vs Porsche 911 Coupe: Key differences

Audi A5 Sportback

  • clearly cheaper
  • clearly more efficient
  • slightly more trunk space
details

Porsche 911 Coupe

  • a bit more power
  • significantly quicker 0–100 km/h
  • slightly lighter
details

By Achim Sedelmaier

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

A5 Sportback

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.

Audi A5 Sportback is clearly cheaper – starting at 40,200 £ , while the Porsche 911 Coupe costs 125,800 £ . That’s a price difference of around 85,628 £.

Fuel consumption also shows a difference: the Audi A5 Sportback uses 2 L/100km and is clearly more efficient than the Porsche 911 Coupe with 10.3 L/100km. The difference is about 8.3 L/100km.

911 Coupe

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 Coupe offers a bit more power – delivering 711 HP compared to 639 HP. That’s roughly 72 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche 911 Coupe is significantly quicker – completing the sprint in 2.5 s, while the Audi A5 Sportback takes 3.7 s. That’s about 1.2 s quicker.

There’s also a difference in torque: the Audi A5 Sportback delivers very slightly more torque with 825 Nm compared to 800 Nm. That’s about 25 Nm more.

A5 Sportback

Space and Everyday Use:

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

Seats: Audi A5 Sportback offers more seats – 5 vs 2.

In terms of curb weight, Porsche 911 Coupe is slightly lighter – 1,536 kg compared to 1,770 kg. The difference is around 234 kg.

Looking at boot space, the Audi A5 Sportback offers slightly more boot space – 445 L compared to 373 L. That’s a difference of about 72 L.

When it comes to payload, the Audi A5 Sportback carries substantially more – 530 kg compared to 310 kg. That’s a difference of about 220 kg.

Who wins the race in the data check?

The Audi A5 Sportback 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 £40,200
A5 Sportback

Audi A5 Sportback

  • Engine Type Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
  • Transmission Automatic
  • Drive Type All-Wheel Drive, Front-Wheel Drive
  • Power HP 150 - 639 HP
  • Consumption L/100km 2 - 7.6 L/100km
  • Electric Range 84 - 110 km
details

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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi A5 Sportback

The Audi A5 Sportback dresses up sleek coupe proportions with the everyday sense of a practical hatchback, so you get striking looks without the compromises. Behind the wheel it balances poise and comfort with premium trimmings that make daily driving feel a little bit special — ideal for buyers who want style and substance in equal measure.

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Porsche 911 Coupe

The Porsche 911 Coupe remains the iconic sports car you buy when you want a thrilling weekend weapon that still behaves like a civilized companion during the weekdays. Its classic silhouette and razor‑sharp handling deliver a grin-inducing drive every time, while the polished interior and intuitive controls remind you this is a car built for drivers, not just headlines.

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Costs and Consumption
Price
40,200 - 91,000 £
Price
125,800 - 301,000 £
Consumption L/100km
2 - 7.6 L/100km
Consumption L/100km
10.3 - 13.8 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
84 - 110 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
45 - 172 g/km
co2
233 - 312 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
Coupe
Seats
5
Seats
2
Doors
-
Doors
-
Curb weight
1,770 - 2,430 kg
Curb weight
1,536 - 1,815 kg
Trunk capacity
331 - 445 L
Trunk capacity
373 L
Length
-
Length
-
Width
1,860 - 1,952 mm
Width
1,852 - 1,900 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
475 - 530 kg
Payload
228 - 310 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
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
150 - 639 HP
Power HP
394 - 711 HP
Acceleration 0-100km/h
3.7 - 9.8 s
Acceleration 0-100km/h
2.5 - 4.5 s
Max Speed
-
Max Speed
-
Torque
280 - 825 Nm
Torque
450 - 800 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6
Power kW
110 - 470 kW
Power kW
290 - 523 kW
Engine capacity
1,968 - 2,995 cm3
Engine capacity
2,981 - 3,996 cm3

General
Model Year
2,025 - 2,026
Model Year
2,024 - 2,026
CO2 Efficiency Class
B, E, F, D
CO2 Efficiency Class
G
Brand
Audi
Brand
Porsche
What drivetrain options does the Audi A5 Sportback have?

The Audi A5 Sportback is available as All-Wheel Drive or Front-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.