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Mercedes SL Class vs Porsche Boxster - Differences and prices compared

Compare performance (816 HP vs 500 HP), boot space and price (112700 £ vs 136000 £ ) at a glance. Find out which car is the better choice for you – Mercedes SL Class or Porsche Boxster?

Mercedes SL Class

Porsche Boxster

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

SL Class

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

Mercedes SL Class has a distinct advantage in terms of price – it starts at 112700 £ , while the Porsche Boxster 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 Boxster with 12.70 L. The difference is about 3.70 L per 100 km.

SL Class

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 Mercedes SL Class has a clearly perceptible 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 slightly quicker – completing the sprint in 2.90 s, while the Porsche Boxster takes 3.40 s. That’s about 0.50 s faster.

In terms of top speed, the Mercedes SL Class performs slight better – reaching 317 km/h, while the Porsche Boxster tops out at 308 km/h. The difference is around 9 km/h.

There’s also a difference in torque: Mercedes SL Class pulls decisively stronger with 1420 Nm compared to 450 Nm. That’s about 970 Nm difference.

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SL Class

Space and Everyday Use:

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

Seats: Mercedes SL Class offers significantly more seating capacity – 4 vs 2.

In curb weight, Porsche Boxster is distinct lighter – 1485 kg compared to 1810 kg. The difference is around 325 kg.

In terms of boot space, the Mercedes SL Class offers clearly more room – 240 L compared to 122 L. That’s a difference of about 118 L.

When it comes to payload, Mercedes SL Class distinct takes the win – 375 kg compared to 270 kg. That’s a difference of about 105 kg.

Who wins the race?

The Mercedes SL Class proves to be outperforms in nearly all aspects and therefore becomes our DriveDuel Champion!
Mercedes SL Class is the better all-rounder in this comparison.

from about £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
  • Electric Range : 12 km
details
Mercedes SL Class
Porsche Boxster

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
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.

details
15C1119_012
15C1119_029
15C1119_120
15C1119_004

Porsche Boxster

The Porsche Boxster epitomizes the essence of a pure, open-top driving experience with its mid-engine roadster design. Known for its agile handling and dynamic performance, the Boxster seamlessly blends luxury with thrilling precision on the road. Its unmistakable styling and superior engineering continue to captivate automotive enthusiasts who crave a visceral connection to the art of driving.

details

Reviews Mercedes SL Class

Reviews Porsche Boxster

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Mercedes SL Class
Porsche Boxster

Costs and Consumption
Price
112700 - 219300 £
Price
136000 £
Consumption L/100km
9 - 13.6 L
Consumption L/100km
12.70 L
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
12 km
Electric Range
-
Battery Capacity
-
Battery Capacity
-
co2
206 - 309 g/km
co2
288 g/km
Fuel tank capacity
70 L
Fuel tank capacity
54 L

Dimensions and Body
Body Type
Roadster
Body Type
Roadster
Seats
4
Seats
2
Doors
2
Doors
2
Curb weight
1810 - 2195 kg
Curb weight
1485 kg
Trunk capacity
110 - 240 L
Trunk capacity
122 L
Length
4697 - 4705 mm
Length
4418 mm
Width
1915 mm
Width
1822 mm
Height
1354 - 1359 mm
Height
1252 mm
Max trunk capacity
-
Max trunk capacity
-
Payload
145 - 375 kg
Payload
270 kg

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
500 HP
Acceleration 0-100km/h
2.9 - 4.9 s
Acceleration 0-100km/h
3.40 s
Max Speed
260 - 317 km/h
Max Speed
308 km/h
Torque
480 - 1420 Nm
Torque
450 Nm
Number of Cylinders
4 - 8
Number of Cylinders
6
Power kW
280 - 600 kW
Power kW
368 kW
Engine capacity
1991 - 3982 cm3
Engine capacity
3996 cm3

General
Model Year
2025
Model Year
2023
CO2 Efficiency Class
G
CO2 Efficiency Class
G
Brand
Mercedes-Benz
Brand
Porsche

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What drive types are available for the Mercedes SL Class?

The Mercedes SL Class is available as Rear-Wheel Drive or All-Wheel Drive.

The prices shown are estimates based on German list prices, adjusted for local VAT. Local registration taxes (e.g. NoVA, BPM or CO2 malus) are not included. This information is not legally binding.