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Kia Niro vs Mazda 6 Estate comparison

Compare performance (138 HP vs 194 HP), boot space and price (29,100 £ vs 30,000 £ ) at a glance. Find out which car is the better choice for you – Kia Niro or Mazda 6 Estate?

Kia Niro vs Mazda 6 Estate: Key differences

Kia Niro

4.5 (2 Reviews)
rate
  • only slightly cheaper
  • clearly more efficient
  • only slightly lighter

Mazda 6 Estate

4.7 (1 Reviews)
rate
  • noticeably more power
  • noticeably quicker 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

Niro

Costs and Efficiency:

Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.

Kia Niro is only slightly cheaper – starting at 29,100 £ , while the Mazda 6 Estate costs 30,000 £ . That’s a price difference of around 866 £.

Fuel consumption also shows a difference: the Kia Niro uses 4.5 L/100km and is clearly more efficient than the Mazda 6 Estate with 6.8 L/100km. The difference is about 2.3 L/100km.

6 Estate

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 Estate offers noticeably more power – delivering 194 HP compared to 138 HP. That’s roughly 56 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mazda 6 Estate is noticeably quicker – completing the sprint in 8.1 s, while the Kia Niro takes 11.1 s. That’s about 3 s quicker.

There’s also a difference in torque: the Kia Niro delivers very slightly more torque with 265 Nm compared to 258 Nm. That’s about 7 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 only slightly lighter – 1,474 kg compared to 1,475 kg. The difference is around 1 kg.

When it comes to payload, the Mazda 6 Estate carries a bit more – 571 kg compared to 466 kg. That’s a difference of about 105 kg.

Who wins the race in the data check?

The Mazda 6 Estate is clearly 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.

from £30,000
6 Estate

Mazda 6 Estate

  • Engine Type : Petrol
  • Transmission : Manuel, Automatic
  • Drive Type : Front-Wheel Drive
  • Power HP : 145 - 194 HP
  • Consumption L/100km : 6.8 - 7.6 L/100km
details

Frequently compared as well

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Mazda 6 Estate

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Kia Niro

The Kia Niro blends clever packaging and modern styling into a compact crossover that’s refreshingly sensible for daily life. It’s comfortable, economical and packed with user‑friendly tech, so if you want a fuss‑free family car with a touch of green credibility, the Niro is worth a test drive.

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Reviews Kia Niro

4.5 (2 Reviews)
rate
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 Estate

The Mazda 6 Estate marries elegant, flowing design with everyday practicality, so you get a grown-up wagon that still looks the part on a weekend escape. It rewards drivers with poised handling and a nicely finished cabin, proving that sensible family cars can be engaging — and a little bit cheeky — too.

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Reviews Mazda 6 Estate

4.7 (1 Reviews)
rate

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

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Mazda 6 Estate

Costs and Consumption
Price
29,100 - 33,800 £
Price
30,000 - 43,500 £
Consumption L/100km
4.5 - 4.9 L/100km
Consumption L/100km
6.8 - 7.6 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
102 - 111 g/km
co2
155 - 172 g/km
Fuel tank capacity
-
Fuel tank capacity
62 L

Dimensions and Body
Body Type
SUV
Body Type
Estate
Seats
5
Seats
5
Doors
-
Doors
5
Curb weight
1,474 kg
Curb weight
1,475 - 1,598 kg
Trunk capacity
-
Trunk capacity
522 L
Length
-
Length
4,805 mm
Width
1,825 mm
Width
1,840 mm
Height
-
Height
1,480 mm
Max trunk capacity
-
Max trunk capacity
1,664 L
Payload
466 kg
Payload
483 - 571 kg

Engine and Performance
Engine Type
Full Hybrid
Engine Type
Petrol
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Drive Type
Front-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
138 HP
Power HP
145 - 194 HP
Acceleration 0-100km/h
11.1 - 11.4 s
Acceleration 0-100km/h
8.1 - 10.7 s
Max Speed
-
Max Speed
205 - 223 km/h
Torque
265 Nm
Torque
213 - 258 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
102 kW
Power kW
107 - 143 kW
Engine capacity
1,580 cm3
Engine capacity
1,998 - 2,488 cm3

General
Model Year
2,025
Model Year
2,021 - 2,022
CO2 Efficiency Class
C
CO2 Efficiency Class
E, F
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.