@ Kia Corporation
@ Mazda Motor Corporation
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Kia Stonic vs Mazda CX-30 – Differences & prices compared

Compare performance, boot capacity, efficiency and price at a glance.
Find out which car is the better choice for you – Kia Stonic or Mazda CX-30?

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

Stonic @ Kia Corporation

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 @ Mazda Motor Corporation

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.

In terms of top speed, the Mazda CX-30 performs somewhat better – reaching 204 km/h, while the Kia Stonic tops out at 182 km/h. The difference is around 22 km/h.

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.

Stonic @ Kia Corporation

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.

In maximum load capacity, the Mazda CX-30 performs a bit better – up to 1406 L, which is about 251 L more than the Kia Stonic.

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?

The Mazda CX-30 proves to be is largely superior and therefore becomes our DriveDuel Champion!
Mazda CX-30 is the better all-rounder in this comparison.

from about £25,200
CX-30 @ Mazda Motor Corporation

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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Kia_Stonic_MY22_04 @ Kia Corporation
Kia_Stonic_MY22_16 @ Kia Corporation
Kia_Stonic_MY22_15 @ Kia Corporation
Kia_Stonic_MY22_08 @ Kia Corporation
Kia_Stonic_MJ22_05 @ Kia Corporation

Mazda CX-30

5 (1)
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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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2022_mazda_cx-30_src_spain_act_44 @ Mazda Motor Corporation
2022_mazda_cx-30_src_spain_act_42 @ Mazda Motor Corporation
2022_mazda_cx-30_src_spain_act_27 @ Mazda Motor Corporation
2022_mazda_cx-30_src_spain_int_3 @ Mazda Motor Corporation

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Stonic @ Kia Corporation
CX-30 @ Mazda Motor Corporation

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
48 - 51 L

Dimensions and Body
Body Type
SUV
Body Type
SUV
Seats
5
Seats
5
Doors
5
Doors
5
Curb weight
1205 - 1270 kg
Curb weight
1455 - 1587 kg
Trunk capacity
352 L
Trunk capacity
422 - 430 L
Length
4165 mm
Length
4395 mm
Width
1760 mm
Width
1795 mm
Height
1520 mm
Height
1540 mm
Max trunk capacity
1155 L
Max trunk capacity
1398 - 1406 L
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
191 - 204 km/h
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 and data displayed are estimates based on German list prices and may vary by country. This information is not legally binding.