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Audi A3 Sportback vs Kia K4 - Differences and prices compared

Compare performance (400 HP vs 180 HP), boot space and price (27000 £ vs 25700 £ ) at a glance. Find out which car is the better choice for you – Audi A3 Sportback or Kia K4?

Audi A3 Sportback

Kia K4

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

A3 Sportback

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Kia K4 has a barely noticeable advantage in terms of price – it starts at 25700 £ , while the Audi A3 Sportback costs 27000 £ . That’s a price difference of around 1295 £.

Fuel consumption also shows a difference: Audi A3 Sportback manages with 1.10 L and is therefore clearly more efficient than the Kia K4 with 5.80 L. The difference is about 4.70 L per 100 km.

A3 Sportback

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 has a decisively edge – offering 400 HP compared to 180 HP. That’s roughly 220 HP more horsepower.

In acceleration from 0 to 100 km/h, the Audi A3 Sportback is decisively quicker – completing the sprint in 3.80 s, while the Kia K4 takes 8.40 s. That’s about 4.60 s faster.

There’s also a difference in torque: Audi A3 Sportback pulls decisively stronger with 500 Nm compared to 265 Nm. That’s about 235 Nm difference.

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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 curb weight, Audi A3 Sportback is barely noticeable lighter – 1360 kg compared to 1415 kg. The difference is around 55 kg.

In terms of boot space, the Kia K4 offers to a small extent more room – 438 L compared to 380 L. That’s a difference of about 58 L.

When it comes to payload, Audi A3 Sportback barely noticeable takes the win – 480 kg compared to 455 kg. That’s a difference of about 25 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.

Audi A3 Sportback
Kia K4

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £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
  • Electric Range : 134 - 141 km
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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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Kia K4

Kia K4 shakes up the compact-sedan crowd with concept-car looks, a smartly packaged cabin, and the kind of easygoing refinement that makes rush hour feel less like a chore. It blends value, tech, and a dash of attitude, serving up a smooth, confident drive that might have you taking the long way home just to show off those angles.

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Reviews Audi A3 Sportback

Reviews Kia K4

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Costs and Consumption
Price
27000 - 56600 £
Price
25700 - 32800 £
Consumption L/100km
1.1 - 9.3 L
Consumption L/100km
5.8 - 6.9 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
134 - 141 km
Electric Range
-
Battery Capacity
19.70 kWh
Battery Capacity
-
co2
25 - 211 g/km
co2
132 - 155 g/km
Fuel tank capacity
40 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
Hatchback
Seats
5
Seats
5
Doors
5
Doors
-
Curb weight
1360 - 1685 kg
Curb weight
1415 - 1500 kg
Trunk capacity
280 - 380 L
Trunk capacity
328 - 438 L
Length
4352 - 4353 mm
Length
-
Width
1816 - 1851 mm
Width
1850 mm
Height
1441 - 1470 mm
Height
-
Max trunk capacity
1100 L
Max trunk capacity
-
Payload
410 - 480 kg
Payload
435 - 455 kg

Engine and Performance
Engine Type
Petrol, Petrol MHEV, Diesel, Plugin Hybrid
Engine Type
Petrol, Petrol MHEV
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
115 - 180 HP
Acceleration 0-100km/h
3.8 - 10.1 s
Acceleration 0-100km/h
8.4 - 12.3 s
Max Speed
225 - 237 km/h
Max Speed
-
Torque
220 - 500 Nm
Torque
200 - 265 Nm
Number of Cylinders
4 - 5
Number of Cylinders
3 - 4
Power kW
85 - 294 kW
Power kW
85 - 132 kW
Engine capacity
1498 - 2480 cm3
Engine capacity
998 - 1598 cm3

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

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What drive types are available for the Audi A3 Sportback?

The Audi A3 Sportback is offered with Front-Wheel Drive or All-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.