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Audi A5 Sportback vs Porsche Boxster comparison

Compare performance (639 HP vs 500 HP), boot space and price (40,200 £ vs 136,000 £ ) at a glance. Find out which car is the better choice for you – Audi A5 Sportback or Porsche Boxster?

Audi A5 Sportback vs Porsche Boxster: Key differences

Audi A5 Sportback

  • substantially cheaper
  • noticeably more power
  • clearly more efficient
  • considerably more trunk space
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Porsche Boxster

  • very slightly quicker 0–100 km/h
  • a bit lighter
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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 substantially cheaper – starting at 40,200 £ , while the Porsche Boxster costs 136,000 £ . That’s a price difference of around 95,828 £.

Fuel consumption also shows a difference: the Audi A5 Sportback uses 1.7 L/100km and is clearly more efficient than the Porsche Boxster with 12.7 L/100km. The difference is about 11 L/100km.

Boxster

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 Audi A5 Sportback offers noticeably more power – delivering 639 HP compared to 500 HP. That’s roughly 139 HP more horsepower.

When accelerating from 0 to 100 km/h, the Porsche Boxster is very slightly quicker – completing the sprint in 3.4 s, while the Audi A5 Sportback takes 3.7 s. That’s about 0.3 s quicker.

There’s also a difference in torque: the Audi A5 Sportback delivers significantly more torque with 825 Nm compared to 450 Nm. That’s about 375 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, Porsche Boxster is a bit lighter – 1,485 kg compared to 1,770 kg. The difference is around 285 kg.

Looking at boot space, the Audi A5 Sportback offers considerably more boot space – 445 L compared to 122 L. That’s a difference of about 323 L.

When it comes to payload, the Audi A5 Sportback carries substantially more – 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 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 £40,200
A5 Sportback

Audi A5 Sportback

  • Engine Type Plug-in Hybrid, Petrol, Diesel MHEV, Petrol MHEV
  • Transmission Automatic
  • Drive Type All-Wheel Drive, Front-Wheel Drive
  • Power HP 150 - 639 HP
  • Consumption L/100km 1.7 - 7.6 L/100km
  • Electric Range 84 - 120 km
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View detailed analysis

Engine and Performance
View detailed analysis

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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

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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 Porsche Boxster

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Audi A5 Sportback
Porsche Boxster

Costs and Consumption
Price
40,200 - 91,000 £
Price
136,000 £
Consumption L/100km
1.7 - 7.6 L/100km
Consumption L/100km
12.7 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
84 - 120 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
39 - 172 g/km
co2
288 g/km
Fuel tank capacity
-
Fuel tank capacity
54 L

Dimensions and Body
Body Type
Hatchback
Body Type
Roadster
Seats
5
Seats
2
Doors
-
Doors
2
Curb weight
1,770 - 2,430 kg
Curb weight
1,485 kg
Trunk capacity
331 - 445 L
Trunk capacity
122 L
Length
-
Length
4,418 mm
Width
1,860 - 1,952 mm
Width
1,822 mm
Height
-
Height
1,252 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
475 - 530 kg
Payload
270 kg

Engine and Performance
Engine Type
Plug-in Hybrid, Petrol, Diesel MHEV, Petrol MHEV
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic, Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
All-Wheel Drive, Front-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
150 - 639 HP
Power HP
500 HP
Acceleration 0-100km/h
3.7 - 9.8 s
Acceleration 0-100km/h
3.4 s
Max Speed
-
Max Speed
308 km/h
Torque
280 - 825 Nm
Torque
450 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6
Power kW
110 - 470 kW
Power kW
368 kW
Engine capacity
1,968 - 2,995 cm3
Engine capacity
3,996 cm3

General
Model Year
2,025 - 2,026
Model Year
2023
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.