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Kia Stonic vs Mazda MX-30 comparison

Compare performance (115 HP vs 170 HP), boot space and price (20100 £ vs 30800 £ ) 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

4.3 (1 Reviews)
rate
  • decisively cheaper
  • clearly lighter
  • minimal more trunk space

Mazda MX-30

4.6 (1 Reviews)
rate
  • evident more power
  • to a small extent quicker from 0–100 km/h

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

Stonic

Costs and Efficiency:

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

Kia Stonic has a decisively advantage in terms of price – it starts at 20100 £ , while the Mazda MX-30 costs 30800 £ . That’s a price difference of around 10714 £.

MX-30

Engine and Performance:

Power, torque and acceleration are the classic benchmarks for car enthusiasts – and here, some clear differences start to show.

When it comes to engine power, the Mazda MX-30 has a evident edge – offering 170 HP compared to 115 HP. That’s roughly 55 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mazda MX-30 is to a small extent quicker – completing the sprint in 9.10 s, while the Kia Stonic takes 10.70 s. That’s about 1.60 s faster.

In terms of top speed, the Kia Stonic performs evident better – reaching 182 km/h, while the Mazda MX-30 tops out at 140 km/h. The difference is around 42 km/h.

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 curb weight, Kia Stonic is clearly lighter – 1205 kg compared to 1849 kg. The difference is around 644 kg.

In terms of boot space, the Kia Stonic offers minimal more room – 352 L compared to 350 L. That’s a difference of about 2 L.

Maximum load volume is the same – both hold up to 1155 L.

When it comes to payload, Kia Stonic hardly perceptible takes the win – 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 holds a decisive overall lead 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.

Frequently compared as well

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Kia Stonic
Mazda MX-30

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £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 : 18.30 kWh
  • Electric Range : 85 km
details

Kia Stonic

4.3 (1 Reviews)
rate

The Kia Stonic is a sprightly compact crossover that mixes city-friendly agility with a cheeky, modern design — perfect for buyers who want style without sacrificing sense. Inside it serves up clever practicality and a bright, well-equipped cabin, making everyday driving feel a bit more fun than it has any right to be.

details
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Mazda MX-30

4.6 (1 Reviews)
rate

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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Reviews Kia Stonic

4.3 (1 Reviews)
rate
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

Reviews Mazda MX-30

4.6 (1 Reviews)
rate
Kia Stonic
Mazda MX-30

Costs and Consumption
Price
20100 - 26600 £
Price
30800 - 37100 £
Consumption L/100km
5.6 - 5.9 L
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
18.30 kWh
Electric Range
-
Electric Range
85 km
Battery Capacity
-
Battery Capacity
-
co2
127 - 133 g/km
co2
22 g/km
Fuel tank capacity
45 L
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
5
Doors
5
Curb weight
1205 - 1270 kg
Curb weight
1849 kg
Trunk capacity
352 L
Trunk capacity
332 - 350 L
Length
4165 mm
Length
4395 mm
Width
1760 mm
Width
1848 mm
Height
1520 mm
Height
1555 mm
Max trunk capacity
1155 L
Max trunk capacity
1137 - 1155 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
9.10 s
Max Speed
179 - 182 km/h
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

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Is the Kia Stonic offered with different drivetrains?

The Kia Stonic is offered with Front-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.