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Kia Niro vs Mercedes A Class Saloon comparison

Compare performance (138 HP vs 320 HP), boot space and price (29,100 £ vs 32,700 £ ) at a glance. Find out which car is the better choice for you – Kia Niro or Mercedes A Class Saloon?

Kia Niro vs Mercedes A Class Saloon: Key differences

Kia Niro

4.5 (3 Reviews)
rate
  • a bit cheaper
  • moderately more trunk space
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Mercedes A Class Saloon

  • clearly more power
  • considerably more efficient
  • considerably quicker 0–100 km/h
  • very slightly lighter
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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 key factors when choosing a car – and this is often where the real differences emerge.

Kia Niro is a bit cheaper – starting at 29,100 £ , while the Mercedes A Class Saloon costs 32,700 £ . That’s a price difference of around 3,587 £.

Fuel consumption also shows a difference: the Mercedes A Class Saloon uses 0.7 L/100km and is considerably more efficient than the Kia Niro with 4.5 L/100km. The difference is about 3.8 L/100km.

A Class Saloon

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Mercedes A Class Saloon offers clearly more power – delivering 320 HP compared to 138 HP. That’s roughly 182 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes A Class Saloon is considerably quicker – completing the sprint in 4.8 s, while the Kia Niro takes 11.1 s. That’s about 6.3 s quicker.

There’s also a difference in torque: the Mercedes A Class Saloon delivers considerably more torque with 450 Nm compared to 265 Nm. That’s about 185 Nm more.

Niro

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 terms of curb weight, Mercedes A Class Saloon is very slightly lighter – 1,450 kg compared to 1,474 kg. The difference is around 24 kg.

Looking at boot space, the Kia Niro offers moderately more boot space – 451 L compared to 395 L. That’s a difference of about 56 L.

When it comes to payload, the Mercedes A Class Saloon carries barely more – 490 kg compared to 466 kg. That’s a difference of about 24 kg.

Who wins the race in the data check?

The Mercedes A Class Saloon is clearly superior 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 £32,700
A Class Saloon

Mercedes A Class Saloon

  • Engine Type Plugin Hybrid, Petrol MHEV, Diesel
  • Transmission Automatic
  • Drive Type Front-Wheel Drive, All-Wheel Drive
  • Power HP 116 - 320 HP
  • Consumption L/100km 0.7 - 8.1 L/100km
  • Electric Range 88 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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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.

Mercedes A Class Saloon

The Mercedes A‑Class Saloon blends compact practicality with premium flair, wrapping a surprisingly spacious interior in a slick, modern package that feels more grown-up than its hatchback sibling. It’s an ideal choice for city drivers who want Mercedes polish and cutting-edge tech without the ostentation of a larger saloon, and it even manages to make the daily commute feel a little bit special.

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Reviews Mercedes A Class Saloon

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

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Mercedes A Class Saloon

Costs and Consumption
Price
29,100 - 33,800 £
Price
32,700 - 55,900 £
Consumption L/100km
4.5 - 4.9 L/100km
Consumption L/100km
0.7 - 8.1 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
88 km
Battery Capacity
-
Battery Capacity
12.9 kWh
co2
102 - 111 g/km
co2
16 - 184 g/km
Fuel tank capacity
-
Fuel tank capacity
35 - 51 L

Dimensions and Body
Body Type
SUV
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
4
Curb weight
1,474 kg
Curb weight
1,450 - 1,705 kg
Trunk capacity
451 L
Trunk capacity
345 - 395 L
Length
-
Length
4,558 - 4,570 mm
Width
1,825 mm
Width
1,796 mm
Height
-
Height
1,413 - 1,429 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
466 kg
Payload
475 - 490 kg

Engine and Performance
Engine Type
Full Hybrid
Engine Type
Plugin Hybrid, Petrol MHEV, Diesel
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Dual-Clutch Automatic
Drive Type
Front-Wheel Drive
Drive Type
Front-Wheel Drive, All-Wheel Drive
Power HP
138 HP
Power HP
116 - 320 HP
Acceleration 0-100km/h
11.1 - 11.4 s
Acceleration 0-100km/h
4.8 - 9.9 s
Max Speed
-
Max Speed
206 - 250 km/h
Torque
265 Nm
Torque
200 - 450 Nm
Number of Cylinders
4
Number of Cylinders
4
Power kW
102 kW
Power kW
85 - 235 kW
Engine capacity
1,580 cm3
Engine capacity
1,332 - 1,991 cm3

General
Model Year
2025
Model Year
2,024 - 2,025
CO2 Efficiency Class
C
CO2 Efficiency Class
B, D, G, E
Brand
Kia
Brand
Mercedes-Benz
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.