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Porsche Panamera vs Mercedes SL Class comparison

Compare performance (782 HP vs 816 HP), boot space and price (99,800 £ vs 112,700 £ ) at a glance. Find out which car is the better choice for you – Porsche Panamera or Mercedes SL Class?

Porsche Panamera vs Mercedes SL Class: Key differences

Porsche Panamera

  • somewhat cheaper
  • considerably more efficient
  • significantly more electric range
  • considerably more trunk space
details

Mercedes SL Class

  • only slightly more power
  • barely lighter
details

By Achim Sedelmaier

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

Panamera

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

Porsche Panamera is somewhat cheaper – starting at 99,800 £ , while the Mercedes SL Class costs 112,700 £ . That’s a price difference of around 12,933 £.

Fuel consumption also shows a difference: the Porsche Panamera uses 3 L/100km and is considerably more efficient than the Mercedes SL Class with 9 L/100km. The difference is about 6 L/100km.

As for electric range, the Porsche Panamera offers significantly more range – reaching up to 97 km, about 85 km more than the Mercedes SL Class.

SL Class

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 Mercedes SL Class offers only slightly more power – delivering 816 HP compared to 782 HP. That’s roughly 34 HP more horsepower.

Both models accelerate almost equally fast – 2.9 s from 0 to 100 km/h.

There’s also a difference in torque: the Mercedes SL Class delivers noticeably more torque with 1,420 Nm compared to 1,000 Nm. That’s about 420 Nm more.

Panamera

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 4 people.

In terms of curb weight, Mercedes SL Class is barely lighter – 1,810 kg compared to 1,960 kg. The difference is around 150 kg.

Looking at boot space, the Porsche Panamera offers considerably more boot space – 494 L compared to 240 L. That’s a difference of about 254 L.

When it comes to payload, the Porsche Panamera carries noticeably more – 545 kg compared to 375 kg. That’s a difference of about 170 kg.

Who wins the race in the data check?

The Porsche Panamera 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 £99,800
Panamera

Porsche Panamera

  • Engine Type Petrol, Plugin Hybrid
  • Transmission Automatic
  • Drive Type Rear-Wheel Drive, All-Wheel Drive
  • Power HP 353 - 782 HP
  • Consumption L/100km 3 - 12 L/100km
  • Electric Range 83 - 97 km
Porsche Panamera
Mercedes SL Class

Costs and Consumption

View detailed analysis

Engine and Performance

View detailed analysis

Dimensions and Body

View detailed analysis

Porsche Panamera

The Porsche Panamera blends sports-car sharpness with luxury-sedan refinement, serving driving thrills up front while pampering passengers in the back. Poised, polished and mischievously quick, it’s the car for buyers who want exotic performance without losing everyday comfort.

details

Mercedes SL Class

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.

details
Porsche Panamera
Mercedes SL Class

Costs and Consumption

Price
99,800 - 212,100 £
Price
112,700 - 219,300 £
Consumption L/100km
3 - 12 L/100km
Consumption L/100km
9 - 13.6 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
83 - 97 km
Electric Range
12 km
Battery Capacity
21.8 kWh
Battery Capacity
-
co2
69 - 274 g/km
co2
206 - 309 g/km
Fuel tank capacity
75 - 90 L
Fuel tank capacity
-

Dimensions and Body

Body Type
Hatchback
Body Type
Roadster
Seats
4
Seats
4
Doors
5
Doors
-
Curb weight
1,960 - 2,535 kg
Curb weight
1,810 - 2,195 kg
Trunk capacity
421 - 494 L
Trunk capacity
110 - 240 L
Length
5,052 - 5,204 mm
Length
-
Width
1,937 mm
Width
1,915 mm
Height
1,415 - 1,428 mm
Height
-
Max trunk capacity
1,255 - 1,385 L
Max trunk capacity
-
Payload
340 - 545 kg
Payload
145 - 375 kg

Engine and Performance

Engine Type
Petrol, Plugin Hybrid
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Dual-Clutch Automatic
Transmission Detail
Automatic Gearbox
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Power HP
353 - 782 HP
Power HP
435 - 816 HP
Acceleration 0-100km/h
2.9 - 5.3 s
Acceleration 0-100km/h
2.9 - 4.7 s
Max Speed
270 - 325 km/h
Max Speed
-
Torque
500 - 1,000 Nm
Torque
500 - 1,420 Nm
Number of Cylinders
6 - 8
Number of Cylinders
4 - 8
Power kW
260 - 575 kW
Power kW
320 - 600 kW
Engine capacity
2,894 - 3,996 cm3
Engine capacity
1,991 - 3,982 cm3

General

Model Year
2025
Model Year
2025
CO2 Efficiency Class
G, B, C
CO2 Efficiency Class
G
Brand
Porsche
Brand
Mercedes-Benz
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.