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Tesla Roadster vs Porsche Cayman comparison

Compare performance ( vs 500 HP), boot space and price (184,300 £ vs 136,000 £ ) at a glance. Find out which car is the better choice for you – Tesla Roadster or Porsche Cayman?

Tesla Roadster vs Porsche Cayman: Key differences

Tesla Roadster

  • substantially quicker 0–100 km/h
details

Porsche Cayman

  • noticeably cheaper
  • considerably more trunk space
details

By Achim Sedelmaier

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

Roadster

Costs and Efficiency:

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

Porsche Cayman is noticeably cheaper – starting at 136,000 £ , while the Tesla Roadster costs 184,300 £ . That’s a price difference of around 48,257 £.

Cayman

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: Tesla Roadster offers more seats – 4 vs 2.

Looking at boot space, the Porsche Cayman offers considerably more boot space – 184 L compared to 0 L. That’s a difference of about 184 L.

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 accelerating from 0 to 100 km/h, the Tesla Roadster is substantially quicker – completing the sprint in 2.1 s, while the Porsche Cayman takes 3.4 s. That’s about 1.3 s quicker.

Looking at top speed, the Tesla Roadster is visibly faster – reaching 402 km/h, while the Porsche Cayman tops out at 315 km/h. The difference is around 87 km/h.

There’s also a difference in torque: the Tesla Roadster delivers significantly more torque with 10,000 Nm compared to 450 Nm. That’s about 9,550 Nm more.

Who wins the race in the data check?

The Tesla Roadster 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.

£184,285
Roadster

Tesla Roadster

  • Engine Type : Electric
  • Transmission : Automatic
  • Drive Type : All-Wheel Drive
  • Electric Range : 1,000 km
Tesla Roadster
Porsche Cayman

Costs and Consumption

View detailed analysis

Dimensions and Body

View detailed analysis

Engine and Performance

View detailed analysis

Tesla Roadster

The Roadster is a stunning embodiment of open-air driving, blending sleek design with exhilarating performance. With its sporty silhouette and agile handling, it offers an unmatched sense of freedom on the road. Enthusiasts revel in the combination of luxury and raw power, making every journey a memorable adventure.

details

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.

details
Tesla Roadster
Porsche Cayman

Costs and Consumption

Price
184,300 £
Price
136,000 £
Consumption L/100km
-
Consumption L/100km
13 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
1,000 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
Roadster
Body Type
Coupe
Seats
4
Seats
2
Doors
2
Doors
2
Curb weight
-
Curb weight
1,490 kg
Trunk capacity
0 L
Trunk capacity
184 L
Length
-
Length
4,456 mm
Width
-
Width
1,822 mm
Height
-
Height
1,267 mm
Max trunk capacity
-
Max trunk capacity
272 L
Payload
-
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
All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
-
Power HP
500 HP
Acceleration 0-100km/h
2.1 s
Acceleration 0-100km/h
3.4 s
Max Speed
402 km/h
Max Speed
315 km/h
Torque
10,000 Nm
Torque
450 Nm
Number of Cylinders
-
Number of Cylinders
6
Power 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
Tesla
Brand
Porsche
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.