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Mercedes SL Class vs McLaren GT Series comparison

Compare performance (816 HP vs 635 HP), boot space and price (112,700 £ vs 175,700 £ ) at a glance. Find out which car is the better choice for you – Mercedes SL Class or McLaren GT Series?

Mercedes SL Class vs McLaren GT Series: Key differences

Mercedes SL Class

  • substantially cheaper
  • noticeably more power
  • visibly more efficient
  • somewhat quicker 0–100 km/h

McLaren GT Series

  • slightly lighter

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

SL Class

Costs and Efficiency:

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

Mercedes SL Class is substantially cheaper – starting at 112,700 £ , while the McLaren GT Series costs 175,700 £ . That’s a price difference of around 63,010 £.

Fuel consumption also shows a difference: the Mercedes SL Class uses 9 L/100km and is visibly more efficient than the McLaren GT Series with 11.9 L/100km. The difference is about 2.9 L/100km.

GT Series

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 Mercedes SL Class offers noticeably more power – delivering 816 HP compared to 635 HP. That’s roughly 181 HP more horsepower.

When accelerating from 0 to 100 km/h, the Mercedes SL Class is somewhat quicker – completing the sprint in 2.9 s, while the McLaren GT Series takes 3.2 s. That’s about 0.3 s quicker.

There’s also a difference in torque: the Mercedes SL Class delivers clearly more torque with 1,420 Nm compared to 630 Nm. That’s about 790 Nm more.

SL Class

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: Mercedes SL Class offers more seats – 4 vs 2.

In terms of curb weight, McLaren GT Series is slightly lighter – 1,520 kg compared to 1,810 kg. The difference is around 290 kg.

Who wins the race in the data check?

The Mercedes SL Class 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 £112,700
SL Class

Mercedes SL Class

  • Engine Type : Petrol MHEV, Petrol, Plugin Hybrid
  • Transmission : Automatic
  • Drive Type : Rear-Wheel Drive, All-Wheel Drive
  • Power HP : 381 - 816 HP
  • Consumption L/100km : 9 - 13.6 L/100km
  • Electric Range : 12 km
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View detailed analysis

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View detailed analysis

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View detailed analysis

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.

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McLaren GT Series

The McLaren GT takes the supercar blueprint and stretches it into a grand tourer, marrying thrilling pace with genuine long-distance comfort and a cabin that’s actually liveable. If you crave weekend escape capability without surrendering driver engagement, this is the car to consider — though it does attract a fair share of admiring glances.

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Mercedes SL Class
McLaren GT Series

Costs and Consumption
Price
112,700 - 219,300 £
Price
175,700 £
Consumption L/100km
9 - 13.6 L/100km
Consumption L/100km
11.9 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
12 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
206 - 309 g/km
co2
270 g/km
Fuel tank capacity
-
Fuel tank capacity
-

Dimensions and Body
Body Type
Roadster
Body Type
Coupe
Seats
4
Seats
2
Doors
-
Doors
-
Curb weight
1,810 - 2,195 kg
Curb weight
1,520 kg
Trunk capacity
-
Trunk capacity
420 L
Length
-
Length
-
Width
1,915 mm
Width
2,045 mm
Height
-
Height
-
Max trunk capacity
-
Max trunk capacity
-
Payload
145 - 375 kg
Payload
-

Engine and Performance
Engine Type
Petrol MHEV, Petrol, Plugin Hybrid
Engine Type
Petrol
Transmission
Automatic
Transmission
Automatic
Transmission Detail
Automatic Gearbox
Transmission Detail
Dual-Clutch Automatic
Drive Type
Rear-Wheel Drive, All-Wheel Drive
Drive Type
Rear-Wheel Drive
Power HP
381 - 816 HP
Power HP
635 HP
Acceleration 0-100km/h
2.9 - 4.9 s
Acceleration 0-100km/h
3.2 s
Max Speed
-
Max Speed
-
Torque
480 - 1,420 Nm
Torque
630 Nm
Number of Cylinders
4 - 8
Number of Cylinders
8
Power kW
280 - 600 kW
Power kW
467 kW
Engine capacity
1,991 - 3,982 cm3
Engine capacity
3,994 cm3

General
Model Year
2,025
Model Year
2,023
CO2 Efficiency Class
G
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
McLaren
What drive types are available for the Mercedes SL Class?

The Mercedes SL Class is offered with 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.