Price and efficiency are key factors when choosing a car – and this is often where the real differences emerge.
Mercedes SL Class has a noticeable advantage in terms of price – it starts at 112700 £, while the Porsche Cayman costs 136000 £. That’s a price difference of around 23324 £.
Fuel consumption also shows a difference: Mercedes SL Class manages with 9 L and is therefore clearly more efficient than the Porsche Cayman with 13 L. The difference is about 4 L per 100 km.
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 Mercedes SL Class has a noticeable edge – offering 816 HP compared to 500 HP. That’s roughly 316 HP more horsepower.
In acceleration from 0 to 100 km/h, the Mercedes SL Class is a bit quicker – completing the sprint in 2.90 s, while the Porsche Cayman takes 3.40 s. That’s about 0.50 s faster.
In terms of top speed, the Mercedes SL Class performs minimal better – reaching 317 km/h, while the Porsche Cayman tops out at 315 km/h. The difference is around 2 km/h.
There’s also a difference in torque: Mercedes SL Class pulls convincingly stronger with 1420 Nm compared to 450 Nm. That’s about 970 Nm difference.
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: Mercedes SL Class offers convincingly more seating capacity – 4 vs 2.
In curb weight, Porsche Cayman is distinct lighter – 1490 kg compared to 1810 kg. The difference is around 320 kg.
In terms of boot space, the Mercedes SL Class offers clearly perceptible more room – 240 L compared to 184 L. That’s a difference of about 56 L.
When it comes to payload, Mercedes SL Class evident takes the win – 375 kg compared to 281 kg. That’s a difference of about 94 kg.
Overall, the Mercedes SL Class shows itself to be wins the duel decisively and secures the title of DriveDuel Champion.
It convinces with the more balanced overall package and proves to be the more versatile choice for everyday use.
The Mercedes SL blends timeless elegance with a cheeky sense of occasion, its retractable roof turning any commute into a small celebratory parade. Behind the wheel it behaves like a grown-up sports car that prefers comfort and presence over headline-grabbing bravado, making it a tempting choice for buyers who want to arrive in style.
detailsThe 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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Costs and Consumption |
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Price
112700 - 219300 £
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Price
136000 £
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Consumption L/100km
9 - 13.6 L
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Consumption L/100km
13 L
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Consumption kWh/100km
-
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Consumption kWh/100km
-
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Electric Range
12 km
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Electric Range
-
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Battery Capacity
-
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Battery Capacity
-
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co2
206 - 309 g/km
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co2
295 g/km
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Fuel tank capacity
70 L
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Fuel tank capacity
54 L
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Dimensions and Body |
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Body Type
Roadster
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Body Type
Coupe
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Seats
4
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Seats
2
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Doors
2
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Doors
2
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Curb weight
1810 - 2195 kg
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Curb weight
1490 kg
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Trunk capacity
110 - 240 L
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Trunk capacity
184 L
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Length
4697 - 4705 mm
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Length
4456 mm
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Width
1915 mm
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Width
1822 mm
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Height
1354 - 1359 mm
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Height
1267 mm
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Max trunk capacity
-
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Max trunk capacity
272 L
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Payload
145 - 375 kg
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Payload
281 kg
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Engine and Performance |
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Engine Type
Petrol MHEV, Petrol, Plugin Hybrid
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Engine Type
Petrol
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Transmission
Automatic
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Transmission
Automatic
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Transmission Detail
Automatic Gearbox
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Transmission Detail
Dual-Clutch Automatic
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Drive Type
Rear-Wheel Drive, All-Wheel Drive
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Drive Type
Rear-Wheel Drive
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Power HP
381 - 816 HP
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Power HP
500 HP
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Acceleration 0-100km/h
2.9 - 4.9 s
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Acceleration 0-100km/h
3.40 s
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Max Speed
260 - 317 km/h
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Max Speed
315 km/h
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Torque
480 - 1420 Nm
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Torque
450 Nm
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Number of Cylinders
4 - 8
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Number of Cylinders
6
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Power kW
280 - 600 kW
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Power kW
368 kW
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Engine capacity
1991 - 3982 cm3
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Engine capacity
3996 cm3
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General |
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Model Year
2025
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Model Year
2021
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CO2 Efficiency Class
G
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CO2 Efficiency Class
G
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Brand
Mercedes-Benz
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Brand
Porsche
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The Mercedes SL Class is available as Rear-Wheel Drive or All-Wheel Drive.
The prices and data displayed are estimates based on German list prices and may vary by country. This information is not legally binding.