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Kia Stonic vs Mercedes AMG GT 4-Door Coupé comparison

Compare performance (115 HP vs 1,169 HP), boot space and price (20,400 £ vs 132,600 £ ) at a glance. Find out which car is the better choice for you – Kia Stonic or Mercedes AMG GT 4-Door Coupé?

Kia Stonic vs Mercedes AMG GT 4-Door Coupé: Key differences

Kia Stonic

4.7 (3 Reviews)
rate
  • significantly cheaper
  • significantly lighter
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Mercedes AMG GT 4-Door Coupé

  • clearly more power
  • substantially quicker 0–100 km/h
  • slightly more trunk space
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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.

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

Stonic

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

Kia Stonic is significantly cheaper – starting at 20,400 £ , while the Mercedes AMG GT 4-Door Coupé costs 132,600 £ . That’s a price difference of around 112,209 £.

AMG GT 4-Door Coupé

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 AMG GT 4-Door Coupé offers clearly more power – delivering 1,169 HP compared to 115 HP. That’s roughly 1,054 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes AMG GT 4-Door Coupé is substantially quicker – completing the sprint in 2.4 s, while the Kia Stonic takes 10.7 s. That’s about 8.3 s quicker.

There’s also a difference in torque: the Mercedes AMG GT 4-Door Coupé delivers substantially more torque with 2,000 Nm compared to 200 Nm. That’s about 1,800 Nm more.

Stonic

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.

Seats: Kia Stonic offers more seats – 5 vs 4.

In terms of curb weight, Kia Stonic is significantly lighter – 1,205 kg compared to 2,535 kg. The difference is around 1,330 kg.

Looking at boot space, the Mercedes AMG GT 4-Door Coupé offers slightly more boot space – 400 L compared to 352 L. That’s a difference of about 48 L.

When it comes to payload, the Mercedes AMG GT 4-Door Coupé carries marginally more – 460 kg compared to 445 kg. That’s a difference of about 15 kg.

Who wins the race in the data check?

The Kia Stonic leads convincingly 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 £20,400
Stonic

Kia Stonic

  • Engine Type Petrol, Petrol MHEV
  • Transmission Manual, Automatic
  • Drive Type Front-Wheel Drive
  • Power HP 100 - 115 HP
  • Consumption L/100km 5.6 - 5.7 L/100km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Kia Stonic

The Kia Stonic is a compact crossover that pairs nimble city manners with a surprisingly spacious and comfortable cabin. It’s a practical, well-equipped choice for buyers who value sensible features, approachable styling and easy everyday usability.

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Reviews Kia Stonic

4.7 (3 Reviews)
rate
Jan
18 Mar 2026, 07:19:10

Very good car, uses little fuel, nothing's gone wrong in 4 years, no breakdowns.

How do you mainly use this car? (optional): Commuter (short/medium distance)
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money
Ennio
4 Feb 2026, 13:19:36

I'm very satisfied — I have a Stonic Black Edition hybrid, and I haven't had any problems after two years.

How do you mainly use this car? (optional): Family car
Efficiency / Consumption & Range
Comfort & Interior
Driving Fun / Performance
Technology & Infotainment
Safety
Practicality / Trunk & Everyday Use
Value for Money

Mercedes AMG GT 4-Door Coupé

The Mercedes-AMG GT 4-Door Coupé transforms AMG's sports-car attitude into a surprisingly practical four-door package, pairing dramatic coupe looks with an interior that's both luxurious and genuinely usable. It's the choice for buyers who want supercar charisma without losing daily comfort — dramatic presence, a rorty soundtrack, and a chassis that turns routine drives into something worth smiling about.

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Reviews Mercedes AMG GT 4-Door Coupé

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

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Costs and Consumption
Price
20,400 - 26,800 £
Price
132,600 - 168,300 £
Consumption L/100km
5.6 - 5.7 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
18.1 - 18.2 kWh/100km
Electric Range
-
Electric Range
686 - 690 km
Battery Capacity
-
Battery Capacity
-
co2
126 - 128 g/km
co2
-
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
SUV
Body Type
Coupe
Seats
5
Seats
4
Doors
-
Doors
-
Curb weight
1,205 - 1,270 kg
Curb weight
2,535 kg
Trunk capacity
352 L
Trunk capacity
400 L
Length
-
Length
-
Width
1,760 mm
Width
1,958 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
440 - 445 kg
Payload
460 kg

Engine and Performance
Engine Type
Petrol, Petrol MHEV
Engine Type
Electric
Transmission
Manual, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Transmission Detail
Reduction Gearbox
Drive Type
Front-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
100 - 115 HP
Power HP
816 - 1,169 HP
Acceleration 0-100km/h
10.7 - 12.1 s
Acceleration 0-100km/h
2.4 - 2.8 s
Max Speed
-
Max Speed
-
Torque
172 - 200 Nm
Torque
1,800 - 2,000 Nm
Number of Cylinders
3
Number of Cylinders
-
Power kW
74 - 85 kW
Power kW
600 - 860 kW
Engine capacity
998 cm3
Engine capacity
-

General
Model Year
2025
Model Year
2026
CO2 Efficiency Class
D
CO2 Efficiency Class
-
Brand
Kia
Brand
Mercedes-Benz
Is the Kia Stonic offered with different drivetrains?

The Kia Stonic 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.