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Audi A5 Sportback vs BMW Z4 comparison

Compare performance (639 HP vs 340 HP), boot space and price (40,200 £ vs 43,500 £ ) at a glance. Find out which car is the better choice for you – Audi A5 Sportback or BMW Z4?

Audi A5 Sportback vs BMW Z4: Key differences

Audi A5 Sportback

  • only slightly cheaper
  • significantly more power
  • considerably more efficient
  • markedly quicker 0–100 km/h
  • moderately more trunk space
details

BMW Z4

4.4 (1 Reviews)
rate
  • moderately lighter
details

All details on performance, efficiency, range and trunk space can be found in the technical comparison below – including user reviews for both models.

By Achim Sedelmaier

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

A5 Sportback

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 A5 Sportback is only slightly cheaper – starting at 40,200 £ , while the BMW Z4 costs 43,500 £ . That’s a price difference of around 3,257 £.

Fuel consumption also shows a difference: the Audi A5 Sportback uses 2 L/100km and is considerably more efficient than the BMW Z4 with 6.9 L/100km. The difference is about 4.9 L/100km.

Z4

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 Audi A5 Sportback offers significantly more power – delivering 639 HP compared to 340 HP. That’s roughly 299 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A5 Sportback is markedly quicker – completing the sprint in 3.7 s, while the BMW Z4 takes 4.5 s. That’s about 0.8 s quicker.

There’s also a difference in torque: the Audi A5 Sportback delivers clearly more torque with 825 Nm compared to 500 Nm. That’s about 325 Nm more.

A5 Sportback

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

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

In terms of curb weight, BMW Z4 is moderately lighter – 1,510 kg compared to 1,770 kg. The difference is around 260 kg.

Looking at boot space, the Audi A5 Sportback offers moderately more boot space – 331 L compared to 281 L. That’s a difference of about 50 L.

When it comes to payload, the Audi A5 Sportback carries significantly more – 530 kg compared to 235 kg. That’s a difference of about 295 kg.

Who wins the race in the data check?

The Audi A5 Sportback is far ahead overall 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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Reviews Audi A5 Sportback

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

BMW Z4

The BMW Z4 is a taut, road-hugging roadster that pairs elegant, low-slung styling with a roof you can drop on a sunny whim, delivering that pure, wind-in-your-hair driving thrill few cars manage to match. It’s an ideal weekend companion for drivers who prefer engagement over practicality — bring good shoes rather than a lot of luggage, and you’ll get a grin every time you turn the wheel.

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Reviews BMW Z4

4.4 (1 Reviews)
rate
Maingard
26 Apr 2026, 13:19:10

Responsive car, very high-performing, very agile in corners.

How do you mainly use this car? (optional): Leisure / Weekend driver
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

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Audi A5 Sportback
BMW Z4

Costs and Consumption
Price
40,200 - 91,000 £
Price
43,500 - 65,300 £
Consumption L/100km
2 - 7.6 L/100km
Consumption L/100km
6.9 - 8.5 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
157 - 191 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
Roadster
Seats
5
Seats
2
Doors
-
Doors
-
Curb weight
1,770 - 2,430 kg
Curb weight
1,510 - 1,640 kg
Trunk capacity
331 L
Trunk capacity
281 L
Length
-
Length
-
Width
1,860 - 1,952 mm
Width
1,864 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
475 - 530 kg
Payload
215 - 235 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
Engine Type
Petrol
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
Dual-Clutch Automatic, Automatic Gearbox
Transmission Detail
Manual Gearbox, Automatic Gearbox
Drive Type
All-Wheel Drive, Front-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
150 - 639 HP
Power HP
197 - 340 HP
Acceleration 0-100km/h
3.7 - 9.8 s
Acceleration 0-100km/h
4.5 - 6.8 s
Max Speed
-
Max Speed
-
Torque
280 - 825 Nm
Torque
320 - 500 Nm
Number of Cylinders
4 - 6
Number of Cylinders
4 - 6
Power kW
110 - 470 kW
Power kW
145 - 250 kW
Engine capacity
1,968 - 2,995 cm3
Engine capacity
1,998 - 2,998 cm3

General
Model Year
2,025 - 2,026
Model Year
2,025 - 2,026
CO2 Efficiency Class
B, E, F, D
CO2 Efficiency Class
F, G
Brand
Audi
Brand
BMW
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.