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Audi A3 Sportback vs SEAT Leon comparison

Compare performance (400 HP vs 272 HP), boot space and price (27,000 £ vs 24,500 £ ) at a glance. Find out which car is the better choice for you – Audi A3 Sportback or SEAT Leon?

Audi A3 Sportback vs SEAT Leon: Key differences

Audi A3 Sportback

3.9 (1 Reviews)
rate
  • markedly more power
  • marginally more efficient
  • marginally more electric range
  • clearly quicker 0–100 km/h
details

SEAT Leon

4.4 (2 Reviews)
rate
  • slightly cheaper
  • barely lighter
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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

A3 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.

SEAT Leon is slightly cheaper – starting at 24,500 £ , while the Audi A3 Sportback costs 27,000 £ . That’s a price difference of around 2,546 £.

Fuel consumption also shows a difference: the Audi A3 Sportback uses 1.1 L/100km and is marginally more efficient than the SEAT Leon with 1.2 L/100km. The difference is about 0.1 L/100km.

As for electric range, the Audi A3 Sportback offers marginally more range – reaching up to 141 km, about 8 km more than the SEAT Leon.

Leon

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 A3 Sportback offers markedly more power – delivering 400 HP compared to 272 HP. That’s roughly 128 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A3 Sportback is clearly quicker – completing the sprint in 3.8 s, while the SEAT Leon takes 7.7 s. That’s about 3.9 s quicker.

There’s also a difference in torque: the Audi A3 Sportback delivers markedly more torque with 500 Nm compared to 360 Nm. That’s about 140 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 Leon is barely lighter – 1,344 kg compared to 1,360 kg. The difference is around 16 kg.

Boot capacity is identical – both offer 380 L of storage.

When it comes to payload, the SEAT Leon carries barely more – 521 kg compared to 480 kg. That’s a difference of about 41 kg.

Who wins the race in the data check?

The Audi A3 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 £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
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Audi A3 Sportback
SEAT Leon

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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 Leon

SEAT Leon pairs sharp, modern styling with a cabin that's sensible and slightly sporty, making it an appealing choice for buyers who want flair without fuss. It drives with eager composure and offers a neat balance of comfort and agility, so you get everyday usability with a wink of fun.

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Reviews SEAT Leon

4.4 (2 Reviews)
rate
FaBio
4 Jan 2026, 21:30:20

Mechanically the car is fairly well built, apart from the rear axle.
The air conditioning is effective and visibility is good, while the FR setup paired with the 18" wheels, in my view, hurts comfort — getting in and out can be awkward. Once on board, though, the seats are very comfortable. The infotainment is comprehensive, with a generously sized screen and full-link smartphone connectivity; the factory sat-nav does what it can, but obviously Maps is superior in every way.
All in all, a fun/sporty car that also winks at family life thanks to a roomy boot and modest fuel consumption.

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

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Audi A3 Sportback
SEAT Leon

Costs and Consumption
Price
27,000 - 92,900 £
Price
24,500 - 36,800 £
Consumption L/100km
1.1 - 9.3 L/100km
Consumption L/100km
1.2 - 5.5 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
134 - 141 km
Electric Range
133 km
Battery Capacity
-
Battery Capacity
-
co2
25 - 211 g/km
co2
28 - 126 g/km
Fuel tank capacity
-
Fuel tank capacity
45 L

Dimensions and Body
Body Type
Hatchback
Body Type
Hatchback
Seats
5
Seats
5
Doors
-
Doors
5
Curb weight
1,360 - 1,685 kg
Curb weight
1,344 - 1,657 kg
Trunk capacity
280 - 380 L
Trunk capacity
270 - 380 L
Length
-
Length
4,368 mm
Width
1,816 - 1,851 mm
Width
1,799 mm
Height
-
Height
1,442 - 1,456 mm
Max trunk capacity
-
Max trunk capacity
1,301 L
Payload
410 - 480 kg
Payload
473 - 521 kg

Engine and Performance
Engine Type
Petrol, Petrol MHEV, Diesel, Plugin Hybrid
Engine Type
Petrol, Petrol MHEV, Plugin Hybrid, Diesel
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
116 - 272 HP
Acceleration 0-100km/h
3.8 - 10.1 s
Acceleration 0-100km/h
7.7 - 10.5 s
Max Speed
-
Max Speed
197 - 217 km/h
Torque
220 - 500 Nm
Torque
220 - 360 Nm
Number of Cylinders
4 - 5
Number of Cylinders
4
Power kW
85 - 294 kW
Power kW
85 - 200 kW
Engine capacity
1,498 - 2,480 cm3
Engine capacity
1,498 - 1,968 cm3

General
Model Year
2,025 - 2,026
Model Year
2,024 - 2,026
CO2 Efficiency Class
D, F, E, G, B
CO2 Efficiency Class
D, B
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.