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Audi A5 Sportback vs Porsche Boxster - Differences and prices compared

Compare performance (367 HP vs 500 HP), boot space and price (38700 £ vs 136000 £ ) at a glance. Find out which car is the better choice for you – Audi A5 Sportback or Porsche Boxster?

Audi A5 Sportback

Porsche Boxster

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 has a significantly advantage in terms of price – it starts at 38700 £ , while the Porsche Boxster costs 136000 £ . That’s a price difference of around 97286 £.

Fuel consumption also shows a difference: Audi A5 Sportback manages with 2 L and is therefore convincingly more efficient than the Porsche Boxster with 12.70 L. The difference is about 10.70 L per 100 km.

A5 Sportback

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 Boxster has a evident edge – offering 500 HP compared to 367 HP. That’s roughly 133 HP more horsepower.

In acceleration from 0 to 100 km/h, the Porsche Boxster is noticeable quicker – completing the sprint in 3.40 s, while the Audi A5 Sportback takes 4.50 s. That’s about 1.10 s faster.

In terms of top speed, the Porsche Boxster performs slightly better – reaching 308 km/h, while the Audi A5 Sportback tops out at 250 km/h. The difference is around 58 km/h.

There’s also a difference in torque: Audi A5 Sportback pulls to a small extent stronger with 550 Nm compared to 450 Nm. That’s about 100 Nm difference.

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 clearly more seating capacity – 4 vs 2.

In curb weight, Porsche Boxster is to a small extent lighter – 1485 kg compared to 1770 kg. The difference is around 285 kg.

In terms of boot space, the Audi A5 Sportback offers clearly more room – 445 L compared to 122 L. That’s a difference of about 323 L.

When it comes to payload, Audi A5 Sportback convincingly takes the win – 530 kg compared to 270 kg. That’s a difference of about 260 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.

Audi A5 Sportback
Porsche Boxster

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £38,700
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 - 367 HP
  • Consumption L/100km : 2 - 7.6 L
  • Electric Range : 107 - 110 km
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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 Boxster

The Porsche Boxster epitomizes the essence of a pure, open-top driving experience with its mid-engine roadster design. Known for its agile handling and dynamic performance, the Boxster seamlessly blends luxury with thrilling precision on the road. Its unmistakable styling and superior engineering continue to captivate automotive enthusiasts who crave a visceral connection to the art of driving.

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Reviews Audi A5 Sportback

Reviews Porsche Boxster

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Costs and Consumption
Price
38700 - 68600 £
Price
136000 £
Consumption L/100km
2 - 7.6 L
Consumption L/100km
12.70 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
107 - 110 km
Electric Range
-
Battery Capacity
20.70 kWh
Battery Capacity
-
co2
45 - 172 g/km
co2
288 g/km
Fuel tank capacity
46 - 60 L
Fuel tank capacity
54 L

Dimensions and Body
Body Type
Hatchback
Body Type
Roadster
Seats
4
Seats
2
Doors
5
Doors
2
Curb weight
1770 - 2170 kg
Curb weight
1485 kg
Trunk capacity
331 - 445 L
Trunk capacity
122 L
Length
4829 - 4835 mm
Length
4418 mm
Width
1860 mm
Width
1822 mm
Height
1429 - 1444 mm
Height
1252 mm
Max trunk capacity
1175 - 1299 L
Max trunk capacity
-
Payload
475 - 530 kg
Payload
270 kg

Engine and Performance
Engine Type
Plugin Hybrid, Petrol, Diesel MHEV, Petrol MHEV
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Dual-Clutch Automatic
Drive Type
All-Wheel Drive, Front-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
150 - 367 HP
Power HP
500 HP
Acceleration 0-100km/h
4.5 - 9.8 s
Acceleration 0-100km/h
3.40 s
Max Speed
216 - 250 km/h
Max Speed
308 km/h
Torque
280 - 550 Nm
Torque
450 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6
Power kW
110 - 270 kW
Power kW
368 kW
Engine capacity
1968 - 2995 cm3
Engine capacity
3996 cm3

General
Model Year
2025
Model Year
2023
CO2 Efficiency Class
B, E, F, D
CO2 Efficiency Class
G
Brand
Audi
Brand
Porsche

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Is the Audi A5 Sportback offered with different drivetrains?

Available configurations include All-Wheel Drive or Front-Wheel Drive.

The prices shown are estimates based on German list prices, adjusted for local VAT. Local registration taxes (e.g. NoVA, BPM or CO2 malus) are not included. This information is not legally binding.