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Audi A3 Sportback vs SEAT Arona comparison

Compare performance (400 HP vs 150 HP), boot space and price (27,000 £ vs 20,700 £ ) at a glance. Find out which car is the better choice for you – Audi A3 Sportback or SEAT Arona?

Audi A3 Sportback vs SEAT Arona: Key differences

Audi A3 Sportback

3.9 (1 Reviews)
rate
  • clearly more power
  • significantly more efficient
  • substantially quicker 0–100 km/h

SEAT Arona

4.9 (2 Reviews)
rate
  • noticeably cheaper
  • moderately lighter
  • very slightly more trunk space

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

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

A3 Sportback

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

SEAT Arona is noticeably cheaper – starting at 20,700 £ , while the Audi A3 Sportback costs 27,000 £ . That’s a price difference of around 6,300 £.

Fuel consumption also shows a difference: the Audi A3 Sportback uses 1.1 L/100km and is significantly more efficient than the SEAT Arona with 5.3 L/100km. The difference is about 4.2 L/100km.

Arona

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 A3 Sportback offers clearly more power – delivering 400 HP compared to 150 HP. That’s roughly 250 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A3 Sportback is substantially quicker – completing the sprint in 3.8 s, while the SEAT Arona takes 8.3 s. That’s about 4.5 s quicker.

There’s also a difference in torque: the Audi A3 Sportback delivers significantly more torque with 500 Nm compared to 250 Nm. That’s about 250 Nm more.

A3 Sportback

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In terms of curb weight, SEAT Arona is moderately lighter – 1,188 kg compared to 1,360 kg. The difference is around 172 kg.

Looking at boot space, the SEAT Arona offers very slightly more boot space – 400 L compared to 380 L. That’s a difference of about 20 L.

When it comes to payload, the SEAT Arona carries only slightly more – 522 kg compared to 480 kg. That’s a difference of about 42 kg.

Who wins the race in the data check?

The Audi A3 Sportback is clearly superior 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 £27,000
A3 Sportback

Audi A3 Sportback

  • Engine Type : Petrol, Petrol MHEV, Diesel, Plugin Hybrid
  • Transmission : Manuel, Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive
  • Power HP : 116 - 400 HP
  • Consumption L/100km : 1.1 - 9.3 L/100km
  • Electric Range : 134 - 141 km
details

Frequently compared as well

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Audi A3 Sportback
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi A3 Sportback

The Audi A3 Sportback wraps premium materials and crisp German design into a practical hatchback package that makes daily driving feel smart rather than showy. It’s nimble in the city, composed on longer trips, and carries just enough swagger to satisfy buyers who want quality without shouting about it.

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Reviews Audi A3 Sportback

3.9 (1 Reviews)
rate

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

SEAT Arona

The SEAT Arona is a cheeky urban crossover that mixes sharp styling with sensible practicality, making it an appealing choice for buyers who want personality without fuss. It’s zippy in traffic, comfortable enough for daily driving, and brings enough character to make routine journeys feel a little more fun.

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Reviews SEAT Arona

4.9 (2 Reviews)
rate
Jorge Soares
26 Mar 2026, 01:31:22

Comprei há 2 meses o Seat Arona novo DE 95 cv... ´Trata-se da versão base...
Estou muito contente com o mesmo...
Tem um ótima posição elevada da condução, é económico, tem uma bagageira com uma boa capacidade de arrumação...
Considero que este B Suv tem uma aparência bem desportiva e atraente...
Só tenho pena deste carro não ter instalados de fábrica os faróis dianteiros de nevoeiro, nem a câmara de ré acho que isto faz muita falta a nível da segurança da condução... Só a versão superior do carro é que traz instalada isto tudo...

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

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SEAT Arona

Costs and Consumption
Price
27,000 - 56,600 £
Price
20,700 - 30,500 £
Consumption L/100km
1.1 - 9.3 L/100km
Consumption L/100km
5.3 - 5.8 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
134 - 141 km
Electric Range
-
Battery Capacity
19.7 kWh
Battery Capacity
-
co2
25 - 211 g/km
co2
120 - 132 g/km
Fuel tank capacity
40 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
SUV
Seats
5
Seats
5
Doors
5
Doors
-
Curb weight
1,360 - 1,685 kg
Curb weight
1,188 - 1,268 kg
Trunk capacity
280 - 380 L
Trunk capacity
400 L
Length
4,352 - 4,353 mm
Length
-
Width
1,816 - 1,851 mm
Width
1,780 mm
Height
1,441 - 1,470 mm
Height
-
Max trunk capacity
1,100 L
Max trunk capacity
-
Payload
410 - 480 kg
Payload
502 - 522 kg

Engine and Performance
Engine Type
Petrol, Petrol MHEV, Diesel, Plugin Hybrid
Engine Type
Petrol
Transmission
Manuel, Automatic
Transmission
Manuel, Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
116 - 400 HP
Power HP
95 - 150 HP
Acceleration 0-100km/h
3.8 - 10.1 s
Acceleration 0-100km/h
8.3 - 11.1 s
Max Speed
225 - 237 km/h
Max Speed
-
Torque
220 - 500 Nm
Torque
175 - 250 Nm
Number of Cylinders
4 - 5
Number of Cylinders
3 - 4
Power kW
85 - 294 kW
Power kW
70 - 110 kW
Engine capacity
1,498 - 2,480 cm3
Engine capacity
999 - 1,498 cm3

General
Model Year
2,025
Model Year
2,025
CO2 Efficiency Class
D, F, E, G, B
CO2 Efficiency Class
D
Brand
Audi
Brand
SEAT
What drive types are available for the Audi A3 Sportback?

The Audi A3 Sportback is available as Front-Wheel Drive or All-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.