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Kia Stonic vs Mazda CX-30 - Differences and prices compared

Compare performance (115 HP vs 186 HP), boot space and price (20100 £ vs 25200 £ ) at a glance. Find out which car is the better choice for you – Kia Stonic or Mazda CX-30?

Kia Stonic

Mazda CX-30

5 (1 Reviews)
rate

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 clearly perceptible advantage in terms of price – it starts at 20100 £ , while the Mazda CX-30 costs 25200 £ . That’s a price difference of around 5100 £.

Fuel consumption also shows a difference: Kia Stonic manages with 5.60 L and is therefore barely noticeable more efficient than the Mazda CX-30 with 5.70 L. The difference is about 0.10 L per 100 km.

CX-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 CX-30 has a distinct edge – offering 186 HP compared to 115 HP. That’s roughly 71 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mazda CX-30 is evident quicker – completing the sprint in 8.30 s, while the Kia Stonic takes 10.70 s. That’s about 2.40 s faster.

There’s also a difference in torque: Mazda CX-30 pulls to a small extent stronger with 240 Nm compared to 200 Nm. That’s about 40 Nm difference.

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Stonic

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 curb weight, Kia Stonic is clearly perceptible lighter – 1205 kg compared to 1455 kg. The difference is around 250 kg.

In terms of boot space, the Mazda CX-30 offers a bit more room – 430 L compared to 352 L. That’s a difference of about 78 L.

When it comes to payload, Mazda CX-30 somewhat takes the win – 496 kg compared to 445 kg. That’s a difference of about 51 kg.

Who wins the race in the data check?

The Mazda CX-30 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.

Kia Stonic
Mazda CX-30

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £25,200
CX-30

Mazda CX-30

  • Engine Type : Petrol MHEV
  • Transmission : Manuel, Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive
  • Power HP : 140 - 186 HP
  • Consumption L/100km : 5.7 - 6.6 L
details

Kia Stonic

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.

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Mazda CX-30

5 (1 Reviews)
rate

The Mazda CX-30 blends sleek coupe-like lines with the practicality of a compact crossover, feeling more premium than its price tag suggests. It’s a joy to drive for anyone who likes a taut chassis and an interior that treats daily commutes like a small luxury escape.

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Reviews Kia Stonic

Reviews Mazda CX-30

5 (1 Reviews)
rate

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Kia Stonic
Mazda CX-30

Costs and Consumption
Price
20100 - 26600 £
Price
25200 - 36800 £
Consumption L/100km
5.6 - 5.9 L
Consumption L/100km
5.7 - 6.6 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
127 - 133 g/km
co2
129 - 148 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
-
Curb weight
1205 - 1270 kg
Curb weight
1455 - 1587 kg
Trunk capacity
352 L
Trunk capacity
422 - 430 L
Length
4165 mm
Length
-
Width
1760 mm
Width
1795 mm
Height
1520 mm
Height
-
Max trunk capacity
1155 L
Max trunk capacity
-
Payload
440 - 445 kg
Payload
458 - 496 kg

Engine and Performance
Engine Type
Petrol, Petrol MHEV
Engine Type
Petrol MHEV
Transmission
Manuel, Automatic
Transmission
Manuel, Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Drive Type
Front-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
100 - 115 HP
Power HP
140 - 186 HP
Acceleration 0-100km/h
10.7 - 12.1 s
Acceleration 0-100km/h
8.3 - 10.3 s
Max Speed
179 - 182 km/h
Max Speed
-
Torque
172 - 200 Nm
Torque
238 - 240 Nm
Number of Cylinders
3
Number of Cylinders
4
Power kW
74 - 85 kW
Power kW
103 - 137 kW
Engine capacity
998 cm3
Engine capacity
1998 - 2488 cm3

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
D
CO2 Efficiency Class
D, E
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.