VS

BMW Z4 vs Bentley Bentayga comparison

Compare performance (340 HP vs 550 HP), boot space and price (43,500 £ vs 177,300 £ ) at a glance. Find out which car is the better choice for you – BMW Z4 or Bentley Bentayga?

BMW Z4 vs Bentley Bentayga: Key differences

BMW Z4

4.4 (1 Reviews)
rate
  • substantially cheaper
  • substantially more efficient
  • considerably lighter
details

Bentley Bentayga

  • clearly more power
  • clearly more trunk space
details

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

Z4

Costs and Efficiency:

Looking at overall running costs, both models reveal some interesting differences in everyday economy.

BMW Z4 is substantially cheaper – starting at 43,500 £ , while the Bentley Bentayga costs 177,300 £ . That’s a price difference of around 133,800 £.

Fuel consumption also shows a difference: the BMW Z4 uses 6.9 L/100km and is substantially more efficient than the Bentley Bentayga with 13 L/100km. The difference is about 6.1 L/100km.

Bentayga

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 Bentley Bentayga offers clearly more power – delivering 550 HP compared to 340 HP. That’s roughly 210 HP more horsepower.

Both models accelerate almost equally fast – 4.5 s from 0 to 100 km/h.

There’s also a difference in torque: the Bentley Bentayga delivers markedly more torque with 770 Nm compared to 500 Nm. That’s about 270 Nm more.

Z4

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: Bentley Bentayga offers more seats – 5 vs 2.

In terms of curb weight, BMW Z4 is considerably lighter – 1,510 kg compared to 2,415 kg. The difference is around 905 kg.

Looking at boot space, the Bentley Bentayga offers clearly more boot space – 484 L compared to 281 L. That’s a difference of about 203 L.

When it comes to payload, the Bentley Bentayga carries significantly more – 835 kg compared to 235 kg. That’s a difference of about 600 kg.

Who wins the race in the data check?

The BMW Z4 holds a decisive 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 £43,500
Z4

BMW Z4

  • Engine Type Petrol
  • Transmission Manuel, Automatic
  • Drive Type Rear-Wheel Drive
  • Power HP 197 - 340 HP
  • Consumption L/100km 6.9 - 8.5 L/100km
BMW Z4
Bentley Bentayga

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

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.

details

Bentley Bentayga

The Bentley Bentayga wraps top-tier luxury and SUV practicality into one impeccably finished package, with a hushed cabin and amenities that pamper both driver and passengers. It’s the sort of car that signals success with understatement — a tailored suit on wheels that makes long drives feel like first-class travel.

details
BMW Z4
Bentley Bentayga

Costs and Consumption

Price
43,500 - 65,300 £
Price
177,300 - 230,400 £
Consumption L/100km
6.9 - 8.5 L/100km
Consumption L/100km
13 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
50 km
Battery Capacity
-
Battery Capacity
17.3 kWh
co2
157 - 191 g/km
co2
294 g/km
Fuel tank capacity
-
Fuel tank capacity
75 - 85 L

Dimensions and Body

Body Type
Roadster
Body Type
SUV
Seats
2
Seats
4 - 5
Doors
-
Doors
5
Curb weight
1,510 - 1,640 kg
Curb weight
2,415 - 2,514 kg
Trunk capacity
281 L
Trunk capacity
484 L
Length
-
Length
5,125 - 5,305 mm
Width
1,864 mm
Width
1,998 mm
Height
-
Height
1,728 mm
Max trunk capacity
-
Max trunk capacity
1,774 L
Payload
215 - 235 kg
Payload
736 - 835 kg

Engine and Performance

Engine Type
Petrol
Engine Type
Petrol, Plugin Hybrid
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Transmission Detail
Automatic Gearbox
Drive Type
Rear-Wheel Drive
Drive Type
All-Wheel Drive
Power HP
197 - 340 HP
Power HP
462 - 550 HP
Acceleration 0-100km/h
4.5 - 6.8 s
Acceleration 0-100km/h
4.5 - 5.3 s
Max Speed
-
Max Speed
254 - 290 km/h
Torque
320 - 500 Nm
Torque
700 - 770 Nm
Number of Cylinders
4 - 6
Number of Cylinders
6 - 8
Power kW
145 - 250 kW
Power kW
340 - 404 kW
Engine capacity
1,998 - 2,998 cm3
Engine capacity
2,995 - 3,996 cm3

General

Model Year
2,025 - 2,026
Model Year
2,020 - 2,022
CO2 Efficiency Class
F, G
CO2 Efficiency Class
G
Brand
BMW
Brand
Bentley
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.