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Vauxhall Rocks Electric vs Porsche Cayman comparison

Compare performance (8 HP vs 500 HP), boot space and price (6,800 £ vs 136,000 £ ) at a glance. Find out which car is the better choice for you – Vauxhall Rocks Electric or Porsche Cayman?

Vauxhall Rocks Electric vs Porsche Cayman: Key differences

Vauxhall Rocks Electric

  • clearly cheaper
  • considerably lighter
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Porsche Cayman

  • considerably more power
  • significantly more trunk space
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Here’s where it gets real: The technical differences in detail

Rocks Electric

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 clearly cheaper – starting at 6,800 £ , while the Porsche Cayman costs 136,000 £ . That’s a price difference of around 129,180 £.

Cayman

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 Porsche Cayman offers considerably more power – delivering 500 HP compared to 8 HP. That’s roughly 492 HP more horsepower.

There’s also a difference in torque: the Porsche Cayman delivers clearly more torque with 450 Nm compared to 40 Nm. That’s about 410 Nm more.

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, Vauxhall Rocks Electric is considerably lighter – 558 kg compared to 1,490 kg. The difference is around 932 kg.

Looking at boot space, the Porsche Cayman offers significantly more boot space – 184 L compared to 63 L. That’s a difference of about 121 L.

When it comes to payload, the Porsche Cayman carries substantially more – 281 kg compared to 142 kg. That’s a difference of about 139 kg.

Who wins the race in the data check?

The Vauxhall Rocks Electric is decisively ahead 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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Vauxhall Rocks Electric
Porsche Cayman

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

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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Porsche Cayman

The Porsche Cayman stands out as a quintessential sports car, blending sleek design with dynamic handling. Its mid-engine layout provides an excellent balance and sharp agility that driving enthusiasts crave. Inside, the Cayman offers a refined and driver-focused interior, ensuring that every journey is an exhilarating experience.

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Vauxhall Rocks Electric
Porsche Cayman

Costs and Consumption
Price
6,800 - 7,500 £
Price
136,000 £
Consumption L/100km
-
Consumption L/100km
13 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
75 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
0 g/km
co2
295 g/km
Fuel tank capacity
-
Fuel tank capacity
54 L

Dimensions and Body
Body Type
Hatchback
Body Type
Coupe
Seats
2
Seats
2
Doors
-
Doors
2
Curb weight
558 kg
Curb weight
1,490 kg
Trunk capacity
63 L
Trunk capacity
184 L
Length
-
Length
4,456 mm
Width
1,388 mm
Width
1,822 mm
Height
-
Height
1,267 mm
Max trunk capacity
-
Max trunk capacity
272 L
Payload
142 kg
Payload
281 kg

Engine and Performance
Engine Type
Electric
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Reduction Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Front-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
8 HP
Power HP
500 HP
Acceleration 0-100km/h
-
Acceleration 0-100km/h
3.4 s
Max Speed
-
Max Speed
315 km/h
Torque
40 Nm
Torque
450 Nm
Number of Cylinders
-
Number of Cylinders
6
Power kW
6 kW
Power kW
368 kW
Engine capacity
-
Engine capacity
3,996 cm3

General
Model Year
2025
Model Year
2021
CO2 Efficiency Class
A
CO2 Efficiency Class
G
Brand
Vauxhall
Brand
Porsche
What drivetrain options does the Vauxhall Rocks Electric have?

The Vauxhall Rocks Electric is offered with Front-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.