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Kia Niro vs Mercedes S Class – Which model is better for everyday use?

Both models have their strengths – but which one suits you more?
Compare performance, efficiency, price and space directly: Kia Niro or Mercedes S Class?

Kia Niro

5 (1 Reviews)
rate

Mercedes S Class

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

Niro @ Kia Corporation

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 has a clearly advantage in terms of price – it starts at 29100 £, while the Mercedes S Class costs 97200 £. That’s a price difference of around 68036 £.

Fuel consumption also shows a difference: Mercedes S Class manages with 2.30 L and is therefore slight more efficient than the Kia Niro with 2.40 L. The difference is about 0.10 L per 100 km.

As for range, the Mercedes S Class performs clearly better – achieving up to 117 km, about 55 km more than the Kia Niro.

S Class @ Mercedes-Benz Group Media

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 S Class has a clearly edge – offering 802 HP compared to 180 HP. That’s roughly 622 HP more horsepower.

In acceleration from 0 to 100 km/h, the Mercedes S Class is convincingly quicker – completing the sprint in 3.30 s, while the Kia Niro takes 9.90 s. That’s about 6.60 s faster.

In terms of top speed, the Mercedes S Class performs noticeable better – reaching 250 km/h, while the Kia Niro tops out at 185 km/h. The difference is around 65 km/h.

There’s also a difference in torque: Mercedes S Class pulls clearly stronger with 1430 Nm compared to 265 Nm. That’s about 1165 Nm difference.

Niro @ Kia Corporation

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 curb weight, Kia Niro is decisively lighter – 1474 kg compared to 2070 kg. The difference is around 596 kg.

In terms of boot space, the Mercedes S Class offers slightly more room – 550 L compared to 451 L. That’s a difference of about 99 L.

When it comes to payload, Mercedes S Class evident takes the win – 730 kg compared to 466 kg. That’s a difference of about 264 kg.

Who comes out on top?

Overall, the Mercedes S Class shows itself to be is largely superior and secures the title of DriveDuel Champion.
It convinces with the more balanced overall package and proves to be the more versatile choice for everyday use.

Kia Niro
Mercedes S Class

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis
from about £97,200
S Class @ Mercedes-Benz Group Media

Mercedes S Class

  • Engine Type : Petrol MHEV, Petrol, Plugin Hybrid, Diesel MHEV
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive, Rear-Wheel Drive
  • Power HP : 336 - 802 HP
  • Consumption L/100km : 2.3 - 13.2 L
  • Electric Range : 31 - 117 km
details

Kia Niro

5 (1 Reviews)
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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.

details
Kia_Niro_HEV_08 @ Kia Corporation
Kia_Niro_HEV_24 @ Kia Corporation
Kia_Niro_HEV_22 @ Kia Corporation
Kia_Niro_HEV_05 @ Kia Corporation
Kia_Niro_HEV_13 @ Kia Corporation

Mercedes S Class

The Mercedes S-Class wraps peerless comfort, whisper-quiet luxury and subtle tech wizardry into a chauffeur-ready package that still knows how to engage the driver. It’s the car for buyers who want to arrive relaxed, be taken seriously and occasionally enjoy a grin when the road reminds them this limousine can dance.

details
21C0428_003 @ Mercedes-Benz Group Media
21C0428_004 @ Mercedes-Benz Group Media
21C0613_021 @ Mercedes-Benz Group Media
21C0613_037 @ Mercedes-Benz Group Media
21C0613_042 @ Mercedes-Benz Group Media
21C0613_043 @ Mercedes-Benz Group Media

Reviews Kia Niro

5 (1 Reviews)
rate

Reviews Mercedes S Class

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Costs and Consumption
Price
29100 - 38600 £
Price
97200 - 204400 £
Consumption L/100km
2.4 - 4.9 L
Consumption L/100km
2.3 - 13.2 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
57 - 62 km
Electric Range
31 - 117 km
Battery Capacity
1.3 - 11.1 kWh
Battery Capacity
10.40 kWh
co2
53 - 111 g/km
co2
52 - 301 g/km
Fuel tank capacity
37 - 42 L
Fuel tank capacity
65 - 76 L

Dimensions and Body
Body Type
SUV
Body Type
Sedan
Seats
5
Seats
5
Doors
5
Doors
4
Curb weight
1474 - 1594 kg
Curb weight
2070 - 2650 kg
Trunk capacity
348 - 451 L
Trunk capacity
325 - 550 L
Length
4420 mm
Length
5179 - 5469 mm
Width
1825 mm
Width
1921 - 1954 mm
Height
1545 mm
Height
1503 - 1515 mm
Max trunk capacity
1342 - 1445 L
Max trunk capacity
-
Payload
466 kg
Payload
420 - 730 kg

Engine and Performance
Engine Type
Full Hybrid, Plugin Hybrid
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid, Diesel MHEV
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Automatic Gearbox
Drive Type
Front-Wheel Drive
Drive Type
All-Wheel Drive, Rear-Wheel Drive
Power HP
138 - 180 HP
Power HP
336 - 802 HP
Acceleration 0-100km/h
9.9 - 11.4 s
Acceleration 0-100km/h
3.3 - 5.9 s
Max Speed
170 - 185 km/h
Max Speed
250 km/h
Torque
265 Nm
Torque
500 - 1430 Nm
Number of Cylinders
4
Number of Cylinders
6 - 12
Power kW
102 - 132 kW
Power kW
247 - 590 kW
Engine capacity
1580 cm3
Engine capacity
2989 - 5980 cm3

General
Model Year
2025
Model Year
2024 - 2025
CO2 Efficiency Class
C, B
CO2 Efficiency Class
G, E, F, B
Brand
Kia
Brand
Mercedes-Benz

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Is the Kia Niro offered with different drivetrains?

The Kia Niro is available as 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.

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