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BMW 4 Series Convertible vs Vauxhall Rocks Electric comparison

Compare performance (530 HP vs 8 HP), boot space and price (52,600 £ vs 6,800 £ ) at a glance. Find out which car is the better choice for you – BMW 4 Series Convertible or Vauxhall Rocks Electric?

BMW 4 Series Convertible vs Vauxhall Rocks Electric: Key differences

BMW 4 Series Convertible

  • clearly more power
  • significantly more trunk space
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Vauxhall Rocks Electric

  • clearly cheaper
  • significantly lighter
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By Achim Sedelmaier

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

4 Series Convertible

Costs and Efficiency:

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

Vauxhall Rocks Electric is clearly cheaper – starting at 6,800 £ , while the BMW 4 Series Convertible costs 52,600 £ . That’s a price difference of around 45,780 £.

Rocks Electric

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 BMW 4 Series Convertible offers clearly more power – delivering 530 HP compared to 8 HP. That’s roughly 522 HP more horsepower.

There’s also a difference in torque: the BMW 4 Series Convertible delivers clearly more torque with 700 Nm compared to 40 Nm. That’s about 660 Nm more.

4 Series Convertible

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: BMW 4 Series Convertible offers more seats – 4 vs 2.

In terms of curb weight, Vauxhall Rocks Electric is significantly lighter – 558 kg compared to 1,765 kg. The difference is around 1,207 kg.

Looking at boot space, the BMW 4 Series Convertible offers significantly more boot space – 385 L compared to 63 L. That’s a difference of about 322 L.

When it comes to payload, the BMW 4 Series Convertible carries substantially more – 420 kg compared to 142 kg. That’s a difference of about 278 kg.

Who wins the race in the data check?

The Vauxhall Rocks Electric 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 £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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Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

BMW 4 Series Convertible

The BMW 4 Series Convertible blends coupe-like elegance with open-top drama, its sleek profile and distinctive grille demanding attention whether the roof’s up or down. Behind the wheel it serves up taut handling and a refined ride, making it a rewarding choice for drivers who want sporty character without sacrificing everyday comfort — and yes, it looks spectacular when you drop the top.

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Reviews BMW 4 Series Convertible

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

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

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Vauxhall Rocks Electric

Costs and Consumption
Price
52,600 - 97,800 £
Price
6,800 - 7,500 £
Consumption L/100km
5.2 - 10.2 L/100km
Consumption L/100km
-
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
-
Electric Range
75 km
Battery Capacity
-
Battery Capacity
-
co2
136 - 231 g/km
co2
0 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Convertible
Body Type
Hatchback
Seats
4
Seats
2
Doors
-
Doors
-
Curb weight
1,765 - 2,055 kg
Curb weight
558 kg
Trunk capacity
385 L
Trunk capacity
63 L
Length
-
Length
-
Width
1,852 - 1,887 mm
Width
1,388 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
345 - 420 kg
Payload
142 kg

Engine and Performance
Engine Type
Diesel MHEV, Petrol, Petrol MHEV
Engine Type
Electric
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Reduction Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
184 - 530 HP
Power HP
8 HP
Acceleration 0-100km/h
3.7 - 8.2 s
Acceleration 0-100km/h
-
Max Speed
-
Max Speed
-
Torque
300 - 700 Nm
Torque
40 Nm
Number of Cylinders
4 - 6
Number of Cylinders
-
Power kW
135 - 390 kW
Power kW
6 kW
Engine capacity
1,995 - 2,998 cm3
Engine capacity
-

General
Model Year
2,024 - 2,025
Model Year
2025
CO2 Efficiency Class
E, F, G
CO2 Efficiency Class
A
Brand
BMW
Brand
Vauxhall
What drive types are available for the BMW 4 Series Convertible?

The BMW 4 Series Convertible is available as 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.