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Mazda 3 Sedan vs Mercedes AMG GT comparison

Compare performance (186 HP vs 816 HP), boot space and price (25,000 £ vs 102,500 £ ) at a glance. Find out which car is the better choice for you – Mazda 3 Sedan or Mercedes AMG GT?

Mazda 3 Sedan vs Mercedes AMG GT: Key differences

Mazda 3 Sedan

4.7 (1 Reviews)
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  • significantly cheaper
  • clearly more efficient
  • clearly lighter
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Mercedes AMG GT

  • considerably more power
  • considerably quicker 0–100 km/h
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By Achim Sedelmaier

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

3 Sedan

Costs and Efficiency:

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

Mazda 3 Sedan is significantly cheaper – starting at 25,000 £ , while the Mercedes AMG GT costs 102,500 £ . That’s a price difference of around 77,527 £.

Fuel consumption also shows a difference: the Mazda 3 Sedan uses 5.5 L/100km and is clearly more efficient than the Mercedes AMG GT with 10.3 L/100km. The difference is about 4.8 L/100km.

AMG GT

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 Mercedes AMG GT offers considerably more power – delivering 816 HP compared to 186 HP. That’s roughly 630 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes AMG GT is considerably quicker – completing the sprint in 2.8 s, while the Mazda 3 Sedan takes 8.1 s. That’s about 5.3 s quicker.

There’s also a difference in torque: the Mercedes AMG GT delivers considerably more torque with 1,420 Nm compared to 240 Nm. That’s about 1,180 Nm more.

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: Mazda 3 Sedan offers more seats – 5 vs 2.

In terms of curb weight, Mazda 3 Sedan is clearly lighter – 1,420 kg compared to 1,790 kg. The difference is around 370 kg.

When it comes to payload, the Mazda 3 Sedan carries significantly more – 481 kg compared to 215 kg. That’s a difference of about 266 kg.

Who wins the race in the data check?

The Mazda 3 Sedan 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 £25,000
3 Sedan

Mazda 3 Sedan

  • Engine Type : Petrol MHEV
  • Transmission : Manuel, Automatic
  • Drive Type : Front-Wheel Drive
  • Power HP : 140 - 186 HP
  • Consumption L/100km : 5.5 - 6.1 L/100km
Mazda 3 Sedan
Mercedes AMG GT

Costs and Consumption

View detailed analysis

Engine and Performance

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Dimensions and Body

View detailed analysis

Mazda 3 Sedan

The Mazda 3 Sedan dresses like a compact premium car, with sculpted lines and an interior that punches well above its class. It rewards drivers with eager handling and a composed, comfortable ride that turns routine runs into something a bit more enjoyable — proof that style and substance can share the same key.

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Mercedes AMG GT

The Mercedes-AMG GT is a theatrical sports car with prowling looks and an aggressive exhaust note that announces its intentions the moment it fires up. It pairs ferocious performance with surprising everyday usability — a taut yet forgiving chassis and a cockpit that feels special — making sensible buyers suddenly very good at justifying indulgence.

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Mazda 3 Sedan
Mercedes AMG GT

Costs and Consumption

Price
25,000 - 34,200 £
Price
102,500 - 194,400 £
Consumption L/100km
5.5 - 6.1 L/100km
Consumption L/100km
10.3 - 14 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
11 km
Battery Capacity
-
Battery Capacity
-
co2
123 - 135 g/km
co2
235 - 319 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body

Body Type
Sedan
Body Type
Coupe
Seats
5
Seats
2
Doors
-
Doors
-
Curb weight
1,420 - 1,492 kg
Curb weight
1,790 - 2,195 kg
Trunk capacity
450 L
Trunk capacity
-
Length
-
Length
-
Width
1,795 mm
Width
1,929 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
467 - 481 kg
Payload
170 - 215 kg

Engine and Performance

Engine Type
Petrol MHEV
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Front-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
140 - 186 HP
Power HP
435 - 816 HP
Acceleration 0-100km/h
8.1 - 9.8 s
Acceleration 0-100km/h
2.8 - 4.6 s
Max Speed
-
Max Speed
-
Torque
238 - 240 Nm
Torque
500 - 1,420 Nm
Number of Cylinders
4
Number of Cylinders
4 - 8
Power kW
103 - 137 kW
Power kW
320 - 600 kW
Engine capacity
1,998 - 2,488 cm3
Engine capacity
1,991 - 3,982 cm3

General

Model Year
2025
Model Year
2025
CO2 Efficiency Class
D
CO2 Efficiency Class
G
Brand
Mazda
Brand
Mercedes-Benz
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.