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BMW Z4 vs Vauxhall Rocks Electric comparison

Compare performance (340 HP vs 8 HP), boot space and price (43,500 £ vs 6,800 £ ) at a glance. Find out which car is the better choice for you – BMW Z4 or Vauxhall Rocks Electric?

BMW Z4 vs Vauxhall Rocks Electric: Key differences

BMW Z4

4.4 (1 Reviews)
rate
  • significantly more power
  • significantly more trunk space
details

Vauxhall Rocks Electric

  • considerably cheaper
  • significantly 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

Z4

Costs and Efficiency:

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

Vauxhall Rocks Electric is considerably cheaper – starting at 6,800 £ , while the BMW Z4 costs 43,500 £ . That’s a price difference of around 36,609 £.

Rocks Electric

Engine and Performance:

Under the bonnet, it becomes clear which model is tuned for sportiness and which one takes the lead when you hit the accelerator.

When it comes to engine power, the BMW Z4 offers significantly more power – delivering 340 HP compared to 8 HP. That’s roughly 332 HP more horsepower.

There’s also a difference in torque: the BMW Z4 delivers considerably more torque with 500 Nm compared to 40 Nm. That’s about 460 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.

Both vehicles offer seating for 2 people.

In terms of curb weight, Vauxhall Rocks Electric is significantly lighter – 558 kg compared to 1,510 kg. The difference is around 952 kg.

Looking at boot space, the BMW Z4 offers significantly more boot space – 281 L compared to 63 L. That’s a difference of about 218 L.

When it comes to payload, the BMW Z4 carries clearly more – 235 kg compared to 142 kg. That’s a difference of about 93 kg.

Who wins the race in the data check?

The Vauxhall Rocks Electric is clearly superior overall 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 £6,800
Rocks Electric

Vauxhall Rocks Electric

  • Engine Type Electric
  • Transmission Automatic
  • Drive Type Front-Wheel Drive
  • Power HP 8 HP
  • Electric Range 75 km
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View detailed analysis

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View detailed analysis

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View detailed analysis

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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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P90479448_highRes_bmw-z4-m40i-09-2022
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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

Vauxhall Rocks Electric

The Opel Rocks Electric is a cheeky urban crossover that swaps petrol fuss for an electric grin, offering compact practicality and a playful character for city life. It’s easy to live with, delivers quietly eager acceleration for everyday driving, and feels like a smart, approachable choice for buyers dipping their toes into EV ownership.

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Reviews Vauxhall Rocks Electric

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

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Vauxhall Rocks Electric

Costs and Consumption
Price
43,500 - 65,300 £
Price
6,800 - 7,500 £
Consumption L/100km
6.9 - 8.5 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
75 km
Battery Capacity
-
Battery Capacity
-
co2
157 - 191 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Roadster
Body Type
Hatchback
Seats
2
Seats
2
Doors
-
Doors
-
Curb weight
1,510 - 1,640 kg
Curb weight
558 kg
Trunk capacity
281 L
Trunk capacity
63 L
Length
-
Length
-
Width
1,864 mm
Width
1,388 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
215 - 235 kg
Payload
142 kg

Engine and Performance
Engine Type
Petrol
Engine Type
Electric
Transmission
Manuel, Automatic
Transmission
Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
197 - 340 HP
Power HP
8 HP
Acceleration 0-100km/h
4.5 - 6.8 s
Acceleration 0-100km/h
-
Max Speed
-
Max Speed
-
Torque
320 - 500 Nm
Torque
40 Nm
Number of Cylinders
4 - 6
Number of Cylinders
-
Power kW
145 - 250 kW
Power kW
6 kW
Engine capacity
1,998 - 2,998 cm3
Engine capacity
-

General
Model Year
2,025 - 2,026
Model Year
2025
CO2 Efficiency Class
F, G
CO2 Efficiency Class
A
Brand
BMW
Brand
Vauxhall
Is the BMW Z4 offered with different drivetrains?

The BMW Z4 is available as Rear-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.