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Kia Niro vs Mazda 6 Saloon comparison

Compare performance (138 HP vs 258 HP), boot space and price (29,100 £ vs 38,500 £ ) at a glance. Find out which car is the better choice for you – Kia Niro or Mazda 6 Saloon?

Kia Niro vs Mazda 6 Saloon: Key differences

Kia Niro

4.5 (3 Reviews)
rate
  • visibly cheaper
  • noticeably lighter
  • markedly more trunk space
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Mazda 6 Saloon

  • considerably more power
  • considerably quicker 0–100 km/h
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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

Niro

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

Kia Niro is visibly cheaper – starting at 29,100 £ , while the Mazda 6 Saloon costs 38,500 £ . That’s a price difference of around 9,351 £.

6 Saloon

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 6 Saloon offers considerably more power – delivering 258 HP compared to 138 HP. That’s roughly 120 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mazda 6 Saloon is considerably quicker – completing the sprint in 7.6 s, while the Kia Niro takes 11.1 s. That’s about 3.5 s quicker.

There’s also a difference in torque: the Mazda 6 Saloon delivers moderately more torque with 320 Nm compared to 265 Nm. That’s about 55 Nm more.

Niro

Space and Everyday Use:

Beyond pure performance, interior space and usability matter most in daily life. This is where you see which car is more practical and versatile.

Both vehicles offer seating for 5 people.

In terms of curb weight, Kia Niro is noticeably lighter – 1,474 kg compared to 2,027 kg. The difference is around 553 kg.

Looking at boot space, the Kia Niro offers markedly more boot space – 451 L compared to 336 L. That’s a difference of about 115 L.

When it comes to payload, the Kia Niro carries noticeably more – 466 kg compared to 360 kg. That’s a difference of about 106 kg.

Who wins the race in the data check?

The Mazda 6 Saloon 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 £38,500
6 Saloon

Mazda 6 Saloon

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive
  • Power HP 245 - 258 HP
  • Consumption kWh/100km 16.5 - 16.6 kWh/100km
  • Electric Range 479 - 552 km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Kia Niro

The Kia Niro is a practical crossover that blends economy and everyday versatility without sacrificing comfort. With a roomy, well-laid-out cabin and calm, composed handling, it’s an easy-to-live-with choice for commuters and families.

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Kia_Niro_HEV_22
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Reviews Kia Niro

4.5 (3 Reviews)
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Archi
25 Mar 2026, 13:11:41

Efficient, functional, understated, spacious and comfortable. No surprises: it delivers what it promises and does its job without fanfare. Good buy.

How do you mainly use this car? (optional): Leisure / Weekend driver
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Wolfgang Schäfer
21 Oct 2025, 14:01:32

I've been driving the Kia Niro since 2019 and am still very happy with this car.

Mazda 6 Saloon

The Mazda6 saloon feels like the sensible yet stylish choice for buyers who want a car that drives with poise and looks sharper than its badge suggests. It mixes engaging handling, a refined cabin and everyday practicality without shouting for attention — perfect for those who prefer understated class with a wink.

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Reviews Mazda 6 Saloon

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

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Kia Niro
Mazda 6 Saloon

Costs and Consumption
Price
29,100 - 33,800 £
Price
38,500 - 41,600 £
Consumption L/100km
4.5 - 4.9 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
16.5 - 16.6 kWh/100km
Electric Range
-
Electric Range
479 - 552 km
Battery Capacity
-
Battery Capacity
-
co2
102 - 111 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
5
Curb weight
1,474 kg
Curb weight
2,027 - 2,028 kg
Trunk capacity
451 L
Trunk capacity
336 L
Length
-
Length
4,921 mm
Width
1,825 mm
Width
1,890 mm
Height
-
Height
1,491 mm
Max trunk capacity
-
Max trunk capacity
1,074 L
Payload
466 kg
Payload
359 - 360 kg

Engine and Performance
Engine Type
Full Hybrid
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
138 HP
Power HP
245 - 258 HP
Acceleration 0-100km/h
11.1 - 11.4 s
Acceleration 0-100km/h
7.6 - 7.8 s
Max Speed
-
Max Speed
175 km/h
Torque
265 Nm
Torque
320 Nm
Number of Cylinders
4
Number of Cylinders
-
Power kW
102 kW
Power kW
180 - 190 kW
Engine capacity
1,580 cm3
Engine capacity
-

General
Model Year
2025
Model Year
2025
CO2 Efficiency Class
C
CO2 Efficiency Class
A
Brand
Kia
Brand
Mazda
What drive types are available for the Kia Niro?

The Kia Niro 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.