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Mercedes-Benz GLS vs Porsche 718 Cayman - Differences and prices compared

Compare performance (603 HP vs 493 HP), trunk space and price (89,200 $ vs 72,800 $ ) at a glance. See which model fits your needs and budget better – Mercedes-Benz GLS or Porsche 718 Cayman?

Mercedes-Benz GLS vs Porsche 718 Cayman: Key differences

Mercedes-Benz GLS

  • slightly more power
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Porsche 718 Cayman

  • clearly cheaper
  • barely more efficient
  • substantially lighter
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Here’s where it gets real: The technical differences in detail

GLS

Costs and Efficiency:

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

Porsche 718 Cayman is clearly cheaper – starting at 72,800 $ , while the Mercedes-Benz GLS costs 89,200 $ . That’s a price difference of around 16,400 $.

When it comes to city fuel economy, the Porsche 718 Cayman performs barely better – achieving 21 mpg, compared to 19 mpg for the Mercedes-Benz GLS. That’s a difference of about 2 mpg.

718 Cayman

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-Benz GLS offers slightly more power – delivering 603 HP compared to 493 HP. That’s roughly 110 HP more horsepower.

There’s also a difference in torque: the Mercedes-Benz GLS delivers considerably more torque with 627 lb-ft compared to 331 lb-ft. That’s about 296 lb-ft more.

GLS

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Seats: Mercedes-Benz GLS offers more seats – 7 vs 2.

In terms of curb weight, Porsche 718 Cayman is substantially lighter – 3,104 lbs compared to 5,489 lbs. The difference is around 2,385 lbs.

Who wins the race in the data check?

The Mercedes-Benz GLS stands out in the key areas 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 $89,200
GLS

Mercedes-Benz GLS

  • Engine Type :
  • Transmission : Automatic
  • Drive Type : All Wheel
  • Power HP : 375 - 603 HP
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Mercedes-Benz GLS
Porsche 718 Cayman

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

General
View detailed analysis

Mercedes-Benz GLS

The Mercedes-Benz GLS stands as a benchmark in the luxury SUV segment, offering an opulent blend of comfort, space, and advanced technology. With its elegant and commanding presence, the GLS is designed to deliver a superior drive with a smooth and powerful performance. Inside, passengers are treated to a spacious interior with high-end materials and state-of-the-art features, turning every journey into a first-class experience.

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Porsche 718 Cayman

The Porsche 718 Cayman is a sleek and dynamic sports car that embodies the essence of driving pleasure. Known for its superb handling and precise steering, this model offers an exhilarating experience on winding roads. Its timeless design and refined interior make the Cayman a perfect blend of performance and luxury.

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Reviews Porsche 718 Cayman

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Mercedes-Benz GLS
Porsche 718 Cayman

Costs and Consumption
Price
89,200 - 178,500 $
Price
72,800 - 164,200 $
FuelEconomy City
13 - 19 mpg
FuelEconomy City
15 - 21 mpg
FuelEconomy Hwy
18 - 24 MPG
FuelEconomy Hwy
19 - 27 MPG
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
Fuel tank capacity
23.7 - 23.8 gal
Fuel tank capacity
14.2 - 16.9 gal

Dimensions and Body
Body Type
4MATIC, 4MATIC+
Body Type
Coupe
Seats
5 - 7
Seats
2
Doors
-
Doors
-
Curb weight
5,489 - 6,106 lbs
Curb weight
3,104 - 3,241 lbs
Trunk Volume
-
Trunk Volume
-
Length
205 - 206 in.
Length
172.4 - 175.4 in.
Width
79.9 in.
Width
70.9 - 71.7 in.
Height
71 - 72 in.
Height
49 - 51 in.

Engine and Performance
Engine Type
Engine Type
Gasoline
Transmission
Automatic
Transmission
, Automatic
Drive Type
All Wheel
Drive Type
Rear Wheel
Power HP
375 - 603 HP
Power HP
300 - 493 HP
Torque
369 - 627 lb-ft
Torque
280 - 331 lb-ft
Number of Cylinders
-
Number of Cylinders
-
Engine Displacement
3 - 4 L
Engine Displacement
2 - 4 L
Gears
-
Gears
-

General
Model Year
2025
Model Year
2025
Brand
Mercedes-Benz
Brand
Porsche
What is the price of the Mercedes-Benz GLS?

Starting from 89,200 $.

DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. Prices shown are manufacturer suggested retail prices (MSRP). Taxes, registration fees and dealer charges are not included.