Mercedes-Benz GLS vs. Porsche Cayenne
iSeeCars' unbiased and data-driven comparison of the Mercedes-Benz GLS and Porsche Cayenne contrasts the two cars across a broad spectrum of vehicle specifications to determine which car is better. In addition to comparing pricing and specs, iSeeCars uses all the ratings, rankings, and insights from its comprehensive analyses of each vehicle model, including calculations of reliability, safety, depreciation, value retention, and the vehicle's projected lifetime recalls (based on analyzing over 25 billion data points). This in-depth evaluation is used to identify which vehicle represents a better overall choice for shoppers who are considering both the Mercedes-Benz GLS and the Porsche Cayenne.
In comparing the Mercedes-Benz GLS's and the Porsche Cayenne's specifications and ratings, the Mercedes-Benz GLS has the advantage in the areas of new vehicle base pricing, typical lower range of pricing for one- to five-year-old used cars, and fuel efficiency and base engine power. The Porsche Cayenne has the advantage in the area of resale value. Based on this comparison of the Mercedes-Benz GLS's and the Porsche Cayenne's specifications and ratings, the Mercedes-Benz GLS is a better car than the Porsche Cayenne.
Pricing: A used 2025 Mercedes-Benz GLS ranges from $79,881 to $144,894 while a used 2025 Porsche Cayenne is priced between $88,876 to $159,459. For a new model, the Mercedes-Benz GLS's price is between $91,763 and $166,193, with the Porsche Cayenne priced between $97,895 and $162,325.
Resale/Retained Value: Looking at the 5-year depreciation rate for both models, the Mercedes-Benz GLS loses 56.1 percent of its value and the Porsche Cayenne loses 49.5 percent of its value. This means the Porsche Cayenne retains 6.6 percentage points more of its value and has the advantage of higher resale value versus the Mercedes-Benz GLS.
Engine Power and Fuel Efficiency Comparison: For engine performance, the Mercedes-Benz GLS’s base engine makes 375 horsepower, and the Porsche Cayenne base engine makes 348 horsepower. The GLS is rated to deliver an average of 21 miles per gallon, with a highway range of 571 miles. The Cayenne is rated to deliver an average of 19 miles per gallon, with a highway range of 545 miles. This gives the Mercedes-Benz GLS the fuel efficiency and maximum range advantage over the Porsche Cayenne. Both models use premium unleaded.
New Car Pricing
Asking Price:
91763 - 166193
Starting MSRP:
89200
Category Avg Starting MSRP:
(Luxury Large SUVs)
96113
Category Starting MSRP Range:
(Luxury Large SUVs)
45100 - 165500
New Car Pricing
Asking Price:
97895 - 162325
Starting MSRP:
84700
Category Avg Starting MSRP:
(Luxury Midsize SUVs)
75104
Category Starting MSRP Range:
(Luxury Midsize SUVs)
48975 - 136200
Used Car Pricing
Avg Used Car Price:
96497
Price Range:
79881 - 144894
Category Avg Price:
(Luxury Large SUVs)
114530
Category Avg Price Range:
(Luxury Large SUVs)
48050 - 212747
# Used Cars for Sale Nationally:
Avg Mileage of Used Cars for Sale:
# Good or Great Deals:
Used Car Pricing
Avg Used Car Price:
111405
Price Range:
88876 - 159459
Category Avg Price:
(Luxury Midsize SUVs)
82207
Category Avg Price Range:
(Luxury Midsize SUVs)
50580 - 145833
# Used Cars for Sale Nationally:
Avg Mileage of Used Cars for Sale:
# Good or Great Deals:
5-year Depreciation
Depreciation $:
50178
Depreciation %:
0.56253707
Resale Value $:
39022
Residual Value %:
0.43746293
Typical Category Depreciation %:
(Luxury Large SUVs)
0.53387957
Category Depreciation Range:
(Luxury Large SUVs)
0.40142291 - 0.56934255
5-year Depreciation
Depreciation $:
42294
Depreciation %:
0.49934001
Resale Value $:
42406
Residual Value %:
0.5006599899999999
Typical Category Depreciation %:
(Luxury Midsize SUVs)
0.49798776
Category Depreciation Range:
(Luxury Midsize SUVs)
0.38914453 - 0.60966222
Mercedes-Benz GLS Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
7.4 / 10
Safety:
Not available
Porsche Cayenne Scores & Rankings
Overall Score:
8.0 / 10
Reliability:
8.2 / 10
Retained Value:
7.8 / 10
Safety:
Not available
iSeeCars Reliability Insights for Mercedes-Benz GLS
Avg Life Expectancy (years):
Typical Category Life Expectancy:
(Luxury Large SUVs)
11.5
Category Life Expectancy Range:
(Luxury Large SUVs)
8.2 - 22.6
Chance of Reaching 200k Miles for a New Car:
iSeeCars Reliability Insights for Porsche Cayenne
Avg Life Expectancy (years):
16.3
Typical Category Life Expectancy:
(Luxury Midsize SUVs)
13.0
Category Life Expectancy Range:
(Luxury Midsize SUVs)
9.7 - 16.8
Chance of Reaching 200k Miles for a New Car:
0.148
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
3.7220146812876638
Typical Category Recalls:
(Luxury Large SUVs)
3.2
Category Range for Recalls:
(Luxury Large SUVs)
1.5 - 27.7
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
4.09401857016569
Typical Category Recalls:
(Luxury Midsize SUVs)
2.7
Category Range for Recalls:
(Luxury Midsize SUVs)
1.4 - 15.4
Mercedes-Benz GLS Rankings
Ranking
1 out of / 68Ranking
1 out of / 29Ranking
1 out of / 17Ranking
2 out of / 68Ranking
2 out of / 29Ranking
2 out of / 17Ranking
5 out of / 68Ranking
5 out of / 17Ranking
5 out of / 17Ranking
6 out of / 68Ranking
6 out of / 68Ranking
6 out of / 68Ranking
6 out of / 29Ranking
7 out of / 17Ranking
7 out of / 17Ranking
8 out of / 16Ranking
9 out of / 29Ranking
11 out of / 29Ranking
11 out of / 17Ranking
12 out of / 29Ranking
12 out of / 17Ranking
15 out of / 29Ranking
16 out of / 29Ranking
18 out of / 26Ranking
20 out of / 68Ranking
43 out of / 68Ranking
57 out of / 64Porsche Cayenne Rankings
Ranking
1 out of / 68Ranking
1 out of / 27Ranking
1 out of / 5Ranking
1 out of / 3Ranking
3 out of / 68Ranking
4 out of / 27Ranking
5 out of / 27Ranking
6 out of / 68Ranking
6 out of / 27Ranking
6 out of / 27Ranking
6 out of / 25Ranking
9 out of / 68Ranking
10 out of / 68Ranking
10 out of / 27Ranking
17 out of / 68Ranking
18 out of / 25Ranking
21 out of / 27Ranking
29 out of / 68Ranking
56 out of / 64Available Body Styles
SUV
Available Body Styles
SUV
Available Drivetrain Options
Gasoline
Available Drivetrain Options
Gasoline, Plug-In Hybrid
Mercedes-Benz GLS Trim Levels
AMG GLS 63, GLS 450, GLS 580, Mercedes-Maybach GLS 600 4MATIC
Porsche Cayenne Trim Levels
Base, Coupe, GTS, GTS Coupe, S, S Coupe, Turbo GT
Warranty Information
Warranty, Bumper-to-Bumper:
4 years / 50000 miles
Warranty, Powertrain:
4 years / 50000 miles
Warranty, Roadside Assistance:
4 years / 50000 miles
Warranty Information
Warranty, Bumper-to-Bumper:
4 years / 50000 miles
Warranty, Powertrain:
4 years / 50000 miles
Warranty, Roadside Assistance:
4 years / 50000 miles
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
2025 NHTSA Overall Rating:
Not yet available
2025 NHTSA Front Crash Overall Rating:
Not yet available
2025 NHTSA Side Crash Overall Rating:
Not yet available
2025 NHTSA Rollover Rating:
Not yet available
IIHS Safety Rating:
Not yet available
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
2025 NHTSA Overall Rating:
Not yet available
2025 NHTSA Front Crash Overall Rating:
Not yet available
2025 NHTSA Side Crash Overall Rating:
Not yet available
2025 NHTSA Rollover Rating:
Not yet available
IIHS Safety Rating:
Not yet available
Base Drivetrain Specs
Horsepower:
375 hp @ 5500 rpm
Torque:
369 foot-lbs @ 1600 rpm
Power-to-Weight Ratio (higher is better):
0.068 hp per pound
Towing capacity:
Not yet available
Base Drivetrain Specs
Horsepower:
348 hp @ 5400 rpm
Torque:
368 foot-lbs @ 1450 rpm
Power-to-Weight Ratio (higher is better):
0.074 hp per pound
Towing capacity:
Not yet available
Engine Specifications
Engine Size:
3 liters
Engine Configuration:
Inline
Number of Cylinders:
6
Transmission:
Automatic
Standard/Optional Drivetrain Type:
AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
19 / 24 / 21
Range (city/hwy):
452 / 571 miles
Recommended Fuel Type:
Premium Unleaded
Engine Specifications
Engine Size:
3 liters
Engine Configuration:
V
Number of Cylinders:
6
Transmission:
Automatic
Standard/Optional Drivetrain Type:
AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
17 / 23 / 19
Range (city/hwy):
403 / 545 miles
Recommended Fuel Type:
Premium Unleaded
Standard/Optional Features
Adaptive Cruise Control:
Standard
Air Suspension:
Standard
Alloy wheels:
Standard
Android Auto:
Standard
Apple CarPlay:
Standard
Automatic Parking:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Cooled/Ventilated Seats:
Standard
Heated Seats
Standard
Internet Radio:
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Paddle Shifters:
Standard
Parking Sensors:
Standard
Power Lift Gate:
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Sunroof/Moonroof:
Standard
Voice Recognition:
Standard
Wifi:
Standard
Wireless Smartphone Charging:
Standard
Captain's seat:
Available
Heated Steering Wheel:
Available
Massage Seats:
Available
Quad Seats:
Available
Trailer Hitch:
Available
Front Bench Seats:
N/A
Panoramic Sunroof/Moonroof
N/A
Roof Rack:
N/A
Standard/Optional Features
Adaptive Cruise Control:
Available
Air Suspension:
Available
Alloy wheels:
Standard
Android Auto:
Standard
Apple CarPlay:
Standard
Automatic Parking:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Cooled/Ventilated Seats:
Available
Heated Seats
Standard
Internet Radio:
N/A
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Paddle Shifters:
Standard
Parking Sensors:
Standard
Power Lift Gate:
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Sunroof/Moonroof:
Available
Voice Recognition:
Standard
Wifi:
N/A
Wireless Smartphone Charging:
Standard
Captain's seat:
N/A
Heated Steering Wheel:
Standard
Massage Seats:
Available
Quad Seats:
N/A
Trailer Hitch:
Available
Front Bench Seats:
N/A
Panoramic Sunroof/Moonroof
Available
Roof Rack:
N/A
Safety Features
360-Degree Camera:
Standard
Blind Spot Monitoring:
Standard
Driver Attention Monitoring:
Standard
Forward Collision Warning:
Standard
Lane Departure Warning:
Standard
Lane Keeping Assist:
Standard
Pedestrian Detection:
Standard
Rear Cross-Traffic Alert:
Standard
Rear Seat Reminder:
Standard
Backup camera:
N/A
Safety Features
360-Degree Camera:
Standard
Blind Spot Monitoring:
Standard
Driver Attention Monitoring:
N/A
Forward Collision Warning:
Standard
Lane Departure Warning:
Standard
Lane Keeping Assist:
Standard
Pedestrian Detection:
Standard
Rear Cross-Traffic Alert:
Standard
Rear Seat Reminder:
N/A
Backup camera:
N/A
Interior Dimensions
Front Head Room:
39.4 inches
Front Leg Room:
40.3 inches
Front Shoulder Room:
59.3 inches
Rear Head Room:
40.2 inches
Rear Leg Room:
41.9 inches
Rear Shoulder Room:
58.5 inches
Cargo Space:
17.4 cubic feet
Cargo Space, 2nd-row seat folded down:
84.7 cubic feet
Overall Interior Volume:
161 cubic feet
Interior Dimensions
Front Head Room:
Not yet available
Front Leg Room:
Not yet available
Front Shoulder Room:
Not yet available
Rear Head Room:
Not yet available
Rear Leg Room:
Not yet available
Rear Shoulder Room:
Not yet available
Cargo Space:
27.2 cubic feet
Cargo Space, 2nd-row seat folded down:
60.3 cubic feet
Overall Interior Volume:
Not yet available
Exterior Dimensions
Curb Weight:
5545 lbs
Width:
84.9 inches
Height:
71.8 inches
Length:
205 inches
Wheelbase:
123.4 inches
Ground Clearance:
7.9 inches
Exterior Dimensions
Curb Weight:
4678 lbs
Width:
86.4 inches
Height:
66.9 inches
Length:
194.1 inches
Wheelbase:
114 inches
Ground Clearance:
8.3 inches
Standard Wheel/Tire Information
Wheel Size:
21.0 x 10.0 inches
Wheel Type:
aluminum alloy
Tire Size:
275/45R21
Standard Wheel/Tire Information
Wheel Size:
20.0 x 9.0 inches
Wheel Type:
aluminum alloy
Tire Size:
255/55R20
Exterior Colors
Black
Black / Obsidian Black Metallic
Blue
MANUFAKTUR Signature Cote d'Azur Light Blue Metallic / MANUFAKTUR Signature Mystic Blue Metallic / Twilight Blue Metallic
Gray
MANUFAKTUR Alpine Grey / MANUFAKTUR Signature Silicon Grey / Selenite Grey Metallic
Green
Emerald Green Metallic / MANUFAKTUR Signature Ireland Mid Green Metallic
Red
MANUFAKTUR Cardinal Red Metallic
Silver
Cirrus Silver Metallic
White
MANUFAKTUR Moonlight White Metallic / Polar White
Beige
Not available
Exterior Colors
Black
Chromite Black Metallic
Blue
Algarve Blue Metallic / Montego Blue Metallic
Gray
Arctic Grey / Chalk / Quartzite Grey Metallic
Green
Not available
Red
Carmine Red
Silver
Dolomite Silver Metallic
White
Carrara White Metallic / White
Beige
Cashmere Beige Metallic
Interior Colors
Beige
Catalana Beige/Black / Macchiato Beige/Black
Black
Black
Blue
Yacht Blue
Brown
Bahia Brown/Black / Truffle Brown
Red
Carmine Red
Gray
Not available
Green
Not available
Purple
Not available
Interior Colors
Beige
Black/Mojave Beige
Black
Basalt Black w/ Cross-Stitching / Black / Black/Mojave Beige
Blue
Not available
Brown
Not available
Red
Basalt Black/Barrique Red w/ Cross-Stitching / Black/Bordeaux Red
Gray
Black/Chalk
Green
Black/Night Green
Purple
Black/Blackberry
