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Kia K4 vs Vauxhall Astra comparison

Compare performance (180 HP vs 196 HP), boot space and price (24,800 £ vs 28,300 £ ) at a glance. Find out which car is the better choice for you – Kia K4 or Vauxhall Astra?

Kia K4 vs Vauxhall Astra: Key differences

Kia K4

4.4 (6 Reviews)
rate
  • somewhat cheaper
  • marginally lighter
  • clearly more trunk space
details

Vauxhall Astra

4.6 (3 Reviews)
rate
  • only slightly more power
  • significantly more efficient
  • moderately quicker 0–100 km/h
details

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

K4

Costs and Efficiency:

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

Kia K4 is somewhat cheaper – starting at 24,800 £ , while the Vauxhall Astra costs 28,300 £ . That’s a price difference of around 3,515 £.

Fuel consumption also shows a difference: the Vauxhall Astra uses 2.2 L/100km and is significantly more efficient than the Kia K4 with 5.8 L/100km. The difference is about 3.6 L/100km.

Astra

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 Vauxhall Astra offers only slightly more power – delivering 196 HP compared to 180 HP. That’s roughly 16 HP more horsepower.

When accelerating from 0 to 100 km/h, the Vauxhall Astra is moderately quicker – completing the sprint in 7.6 s, while the Kia K4 takes 8.4 s. That’s about 0.8 s quicker.

There’s also a difference in torque: the Vauxhall Astra delivers noticeably more torque with 360 Nm compared to 265 Nm. That’s about 95 Nm more.

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 5 people.

In terms of curb weight, Kia K4 is marginally lighter – 1,415 kg compared to 1,438 kg. The difference is around 23 kg.

Looking at boot space, the Kia K4 offers clearly more boot space – 604 L compared to 422 L. That’s a difference of about 182 L.

When it comes to payload, the Vauxhall Astra carries barely more – 502 kg compared to 455 kg. That’s a difference of about 47 kg.

Who wins the race in the data check?

The Vauxhall Astra stands well ahead of its rival 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 £28,300
Astra

Vauxhall Astra

  • Engine Type Petrol MHEV, Plugin Hybrid, Diesel, Electric
  • Transmission Automatic
  • Drive Type Front-Wheel Drive
  • Power HP 130 - 196 HP
  • Consumption L/100km 2.2 - 4.9 L/100km
  • Consumption kWh/100km 15.3 kWh/100km
  • Electric Range 84 - 454 km
details

Frequently compared as well

Opel Astra
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The Opel Astra is the grown-up compact — practical, composed and roomy enough for weekend gear, while the Opel Mokka trades boot space for a higher driving position, sharper looks and crossover sass. Pick the Astra for better value, comfort and lower running costs; choose the Mokka if you crave …
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Kia K4
Vauxhall Astra

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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.

details
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Reviews Kia K4

4.4 (6 Reviews)
rate
Joz
20 May 2026, 08:04:45

A modern, ultra-easy-to-use car with a full set of systems and assistants that work as they should, but with a sluggish gearbox and poor noise insulation.

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Joz
20 May 2026, 08:04:45

A modern, ultra-easy-to-use car with a full set of systems and assistants that work as they should, but with a sluggish gearbox and poor soundproofing.

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Joz
20 May 2026, 08:04:44

A modern, ultra-easy-to-use car with a full set of systems and assistants that work as they should, but with a sluggish gearbox and poor noise insulation.

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Joz
20 May 2026, 08:04:44

A modern, ultra-easy-to-use car with a full set of systems and assistants that work as they should, but with a sluggish gearbox and poor sound insulation.

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Joz
20 May 2026, 08:04:44

A modern, ultra-easy-to-use car with a full set of systems and assistants that work as they should, but hampered by a sluggish gearbox and poor soundproofing.

Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

Vauxhall Astra

The Opel Astra strikes a neat balance between everyday practicality and engaging handling, so the daily grind suddenly feels a bit less dull. Inside it's intelligently packaged with modern kit and comfortable seating, making it a very sensible pick for buyers who want a dependable hatchback that doesn't take itself too seriously.

details
01_Opel-Astra-518263
05_Opel-Astra-518267
24_Opel-Astra-518297

Reviews Vauxhall Astra

4.6 (3 Reviews)
rate

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

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Kia K4
Vauxhall Astra

Costs and Consumption
Price
24,800 - 34,200 £
Price
28,300 - 37,900 £
Consumption L/100km
5.8 - 7.1 L/100km
Consumption L/100km
2.2 - 4.9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
15.3 kWh/100km
Electric Range
-
Electric Range
84 - 454 km
Battery Capacity
-
Battery Capacity
-
co2
132 - 161 g/km
co2
0 - 130 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback, Estate
Body Type
Hatchback
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
1,415 - 1,540 kg
Curb weight
1,438 - 1,733 kg
Trunk capacity
328 - 604 L
Trunk capacity
310 - 422 L
Length
-
Length
-
Width
1,850 mm
Width
1,859 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
435 - 455 kg
Payload
438 - 502 kg

Engine and Performance
Engine Type
Petrol, Petrol MHEV
Engine Type
Petrol MHEV, Plugin Hybrid, Diesel, Electric
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Transmission Detail
Dual-Clutch Automatic, Automatic Gearbox, Reduction Gearbox
Drive Type
Front-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
115 - 180 HP
Power HP
130 - 196 HP
Acceleration 0-100km/h
8.4 - 12.3 s
Acceleration 0-100km/h
7.6 - 10.6 s
Max Speed
-
Max Speed
-
Torque
200 - 265 Nm
Torque
230 - 360 Nm
Number of Cylinders
3 - 4
Number of Cylinders
3 - 4
Power kW
85 - 132 kW
Power kW
96 - 144 kW
Engine capacity
998 - 1,598 cm3
Engine capacity
1,199 - 1,598 cm3

General
Model Year
2,025 - 2,026
Model Year
2026
CO2 Efficiency Class
D, E, F
CO2 Efficiency Class
C, B, D, A
Brand
Kia
Brand
Vauxhall
Is the Kia K4 offered with different drivetrains?

The Kia K4 is offered with 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.