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Kia Stonic vs Mazda MX-30 comparison

Compare performance (115 HP vs 170 HP), boot space and price (20,400 £ vs 30,800 £ ) at a glance. Find out which car is the better choice for you – Kia Stonic or Mazda MX-30?

Kia Stonic vs Mazda MX-30: Key differences

Kia Stonic

4.6 (2 Reviews)
rate
  • clearly cheaper
  • substantially lighter
  • very slightly more trunk space
details

Mazda MX-30

4.6 (1 Reviews)
rate
  • markedly more power
  • a bit 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

Stonic

Costs and Efficiency:

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

Kia Stonic is clearly cheaper – starting at 20,400 £ , while the Mazda MX-30 costs 30,800 £ . That’s a price difference of around 10,457 £.

MX-30

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 Mazda MX-30 offers markedly more power – delivering 170 HP compared to 115 HP. That’s roughly 55 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mazda MX-30 is a bit quicker – completing the sprint in 9.1 s, while the Kia Stonic takes 10.7 s. That’s about 1.6 s quicker.

Stonic

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, Kia Stonic is substantially lighter – 1,205 kg compared to 1,849 kg. The difference is around 644 kg.

Looking at boot space, the Kia Stonic offers very slightly more boot space – 352 L compared to 350 L. That’s a difference of about 2 L.

When it comes to payload, the Kia Stonic carries barely more – 445 kg compared to 402 kg. That’s a difference of about 43 kg.

Who wins the race in the data check?

The Mazda MX-30 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 £30,800
MX-30

Mazda MX-30

  • Engine Type Plugin Hybrid
  • Transmission Automatic
  • Drive Type Front-Wheel Drive
  • Power HP 170 HP
  • Consumption kWh/100km 18.3 kWh/100km
  • Electric Range 85 km
details

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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Kia Stonic

The Kia Stonic is a compact crossover that pairs nimble city manners with a surprisingly spacious and comfortable cabin. It’s a practical, well-equipped choice for buyers who value sensible features, approachable styling and easy everyday usability.

details
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Reviews Kia Stonic

4.6 (2 Reviews)
rate
Jan
18 Mar 2026, 07:19:10

Very good car, uses little fuel, nothing's gone wrong in 4 years, no breakdowns.

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Ennio
4 Feb 2026, 13:19:36

I'm very satisfied — I have a Stonic Black Edition hybrid, and I haven't had any problems after two years.

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

Mazda MX-30

The Mazda MX-30 trades conventional EV practicality for a boutique vibe, wrapping easy urban agility and a stylish, artisan interior into a compact package that stands out in the crossover crowd. It’s ideal for city-minded buyers who value design and driving feel over long-distance trips, and its quirky details prove Mazda can be playful without losing its driver-focused soul.

details
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2022_mazda_cx-30_src_spain_act_41_highres
2022_mazda_cx-30_src_spain_act_28_highres
2022_mazda_cx-30_src_spain_int_1_highres

Reviews Mazda MX-30

4.6 (1 Reviews)
rate

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

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Mazda MX-30

Costs and Consumption
Price
20,400 - 26,800 £
Price
30,800 - 37,100 £
Consumption L/100km
5.6 - 5.7 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
18.3 kWh/100km
Electric Range
-
Electric Range
85 km
Battery Capacity
-
Battery Capacity
-
co2
126 - 128 g/km
co2
22 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
-
Doors
5
Curb weight
1,205 - 1,270 kg
Curb weight
1,849 kg
Trunk capacity
352 L
Trunk capacity
332 - 350 L
Length
-
Length
4,395 mm
Width
1,760 mm
Width
1,848 mm
Height
-
Height
1,555 mm
Max trunk capacity
-
Max trunk capacity
1,137 - 1,155 L
Payload
440 - 445 kg
Payload
402 kg

Engine and Performance
Engine Type
Petrol, Petrol MHEV
Engine Type
Plugin Hybrid
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
100 - 115 HP
Power HP
170 HP
Acceleration 0-100km/h
10.7 - 12.1 s
Acceleration 0-100km/h
9.1 s
Max Speed
-
Max Speed
140 km/h
Torque
172 - 200 Nm
Torque
-
Number of Cylinders
3
Number of Cylinders
-
Power kW
74 - 85 kW
Power kW
125 kW
Engine capacity
998 cm3
Engine capacity
830 cm3

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
D
CO2 Efficiency Class
B
Brand
Kia
Brand
Mazda
Is the Kia Stonic offered with different drivetrains?

The Kia Stonic 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.