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Mercedes AMG GT vs BMW Z4 comparison

Compare performance (816 HP vs 340 HP), boot space and price (102,500 £ vs 43,500 £ ) at a glance. Find out which car is the better choice for you – Mercedes AMG GT or BMW Z4?

Mercedes AMG GT vs BMW Z4: Key differences

Mercedes AMG GT

  • substantially more power
  • considerably quicker 0–100 km/h
  • somewhat more trunk space
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BMW Z4

4.4 (1 Reviews)
rate
  • clearly cheaper
  • clearly more efficient
  • somewhat 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

AMG GT

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.

BMW Z4 is clearly cheaper – starting at 43,500 £ , while the Mercedes AMG GT costs 102,500 £ . That’s a price difference of around 59,047 £.

Fuel consumption also shows a difference: the BMW Z4 uses 6.9 L/100km and is clearly more efficient than the Mercedes AMG GT with 10.3 L/100km. The difference is about 3.4 L/100km.

Z4

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 offers substantially more power – delivering 816 HP compared to 340 HP. That’s roughly 476 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 BMW Z4 takes 4.5 s. That’s about 1.7 s quicker.

There’s also a difference in torque: the Mercedes AMG GT delivers significantly more torque with 1,420 Nm compared to 500 Nm. That’s about 920 Nm more.

AMG GT

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 2 people.

In terms of curb weight, BMW Z4 is somewhat lighter – 1,510 kg compared to 1,790 kg. The difference is around 280 kg.

Looking at boot space, the Mercedes AMG GT offers somewhat more boot space – 321 L compared to 281 L. That’s a difference of about 40 L.

When it comes to payload, the BMW Z4 carries only slightly more – 235 kg compared to 215 kg. That’s a difference of about 20 kg.

Who wins the race in the data check?

The Mercedes AMG GT holds a solid overall lead 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 £102,500
AMG GT

Mercedes AMG GT

  • Engine Type Petrol MHEV, Petrol, Plugin Hybrid
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 435 - 816 HP
  • Consumption L/100km 10.3 - 14 L/100km
  • Electric Range 11 km
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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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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Reviews Mercedes AMG GT

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

BMW Z4

The BMW Z4 is a taut, road-hugging roadster that pairs elegant, low-slung styling with a roof you can drop on a sunny whim, delivering that pure, wind-in-your-hair driving thrill few cars manage to match. It’s an ideal weekend companion for drivers who prefer engagement over practicality — bring good shoes rather than a lot of luggage, and you’ll get a grin every time you turn the wheel.

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Reviews BMW Z4

4.4 (1 Reviews)
rate
Maingard
26 Apr 2026, 13:19:10

Responsive car, very high-performing, very agile in corners.

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

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Mercedes AMG GT
BMW Z4

Costs and Consumption
Price
102,500 - 194,400 £
Price
43,500 - 65,300 £
Consumption L/100km
10.3 - 14 L/100km
Consumption L/100km
6.9 - 8.5 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
11 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
235 - 319 g/km
co2
157 - 191 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Coupe
Body Type
Roadster
Seats
2
Seats
2
Doors
-
Doors
-
Curb weight
1,790 - 2,195 kg
Curb weight
1,510 - 1,640 kg
Trunk capacity
182 - 321 L
Trunk capacity
281 L
Length
-
Length
-
Width
1,929 mm
Width
1,864 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
170 - 215 kg
Payload
215 - 235 kg

Engine and Performance
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid
Engine Type
Petrol
Transmission
Automatic
Transmission
Manuel, Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Manual Gearbox, Automatic Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
435 - 816 HP
Power HP
197 - 340 HP
Acceleration 0-100km/h
2.8 - 4.6 s
Acceleration 0-100km/h
4.5 - 6.8 s
Max Speed
-
Max Speed
-
Torque
500 - 1,420 Nm
Torque
320 - 500 Nm
Number of Cylinders
4 - 8
Number of Cylinders
4 - 6
Power kW
320 - 600 kW
Power kW
145 - 250 kW
Engine capacity
1,991 - 3,982 cm3
Engine capacity
1,998 - 2,998 cm3

General
Model Year
2025
Model Year
2,025 - 2,026
CO2 Efficiency Class
G
CO2 Efficiency Class
F, G
Brand
Mercedes-Benz
Brand
BMW
What drive types are available for the Mercedes AMG GT?

Available configurations include Rear-Wheel Drive or All-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.