Mercedes-Benz GL-Class vs. Mercedes-Benz M-Class
iSeeCars' unbiased and data-driven comparison of the Mercedes-Benz GL-Class and Mercedes-Benz M-Class 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 GL-Class and the Mercedes-Benz M-Class.
When comparing the Mercedes-Benz GL-Class's and the Mercedes-Benz M-Class's specifications and ratings, the Mercedes-Benz GL-Class has the advantage in the areas of typical lower range of pricing for one- to five-year-old used cars, and fuel efficiency and interior volume. The Mercedes-Benz M-Class has the advantage in the area of base engine power. Based on this comparison of the Mercedes-Benz GL-Class's and the Mercedes-Benz M-Class's specifications and ratings, the Mercedes-Benz GL-Class is a better car than the Mercedes-Benz M-Class.
Pricing: A used 2015 Mercedes-Benz GL-Class ranges from $9,972 to $25,562 while a used 2015 Mercedes-Benz M-Class is priced between $9,995 to $21,279.
Engine Power and Fuel Efficiency Comparison: For engine performance, the Mercedes-Benz GL-Class’s base engine makes 240 horsepower, and the Mercedes-Benz M-Class base engine makes 302 horsepower. The GL-Class is rated to deliver an average of 22 miles per gallon, with a highway range of 686 miles. The M-Class is rated to deliver an average of 20 miles per gallon, with a highway range of 590 miles. This gives the Mercedes-Benz GL-Class the fuel efficiency and maximum range advantage over the Mercedes-Benz M-Class. The GL-Class uses diesel, and the M-Class uses gasoline.
Passenger Space Comparison: The Mercedes-Benz GL-Class has the advantage of offering more interior volume, reflected in more front head room, rear head room and rear leg room. The Mercedes-Benz M-Class has the advantage in the areas of rear shoulder room cargo space. The Mercedes-Benz GL-Class and Mercedes-Benz M-Class are comparable in regards to front shoulder room and front leg room.
New Car Pricing
Asking Price:
-
Starting MSRP:
63600
Category Avg Starting MSRP:
(Luxury Large SUVs)
67565
Category Starting MSRP Range:
(Luxury Large SUVs)
39050 - 115400
New Car Pricing
Asking Price:
-
Starting MSRP:
48300
Category Avg Starting MSRP:
(Luxury Midsize SUVs)
57728
Category Starting MSRP Range:
(Luxury Midsize SUVs)
38900 - 102100
Used Car Pricing
Avg Used Car Price:
16030
Price Range:
9972 - 25562
Category Avg Price:
(Luxury Large SUVs)
21601
Category Avg Price Range:
(Luxury Large SUVs)
9635 - 57699
# Used Cars for Sale Nationally:
119
Avg Mileage of Used Cars for Sale:
111600
# Good or Great Deals:
51
Used Car Pricing
Avg Used Car Price:
14932
Price Range:
9995 - 21279
Category Avg Price:
(Luxury Midsize SUVs)
18903
Category Avg Price Range:
(Luxury Midsize SUVs)
11656 - 30557
# Used Cars for Sale Nationally:
216
Avg Mileage of Used Cars for Sale:
108587
# Good or Great Deals:
106
Mercedes-Benz GL-Class Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
Not available
Safety:
Not available
Mercedes-Benz M-Class Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
Not available
Safety:
Not available
iSeeCars Reliability Insights for Mercedes-Benz GL-Class
Remaining Life Expectancy (years):
Typical Category Remaining Life Expectancy:
(Luxury Large SUVs)
1.9
Category Remaining Life Expectancy Range:
(Luxury Large SUVs)
0.1 - 12.6
Chance of Reaching 200k Miles for a New Car:
0.054
iSeeCars Reliability Insights for Mercedes-Benz M-Class
Remaining Life Expectancy (years):
3.1
Typical Category Remaining Life Expectancy:
(Luxury Midsize SUVs)
3.1
Category Remaining Life Expectancy Range:
(Luxury Midsize SUVs)
1.3 - 6.8
Chance of Reaching 200k Miles for a New Car:
0.13
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
13.695069025940349
Typical Category Recalls:
(Luxury Large SUVs)
4.1
Category Range for Recalls:
(Luxury Large SUVs)
1.5 - 13.7
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
18.580410167884825
Typical Category Recalls:
(Luxury Midsize SUVs)
3.4
Category Range for Recalls:
(Luxury Midsize SUVs)
1.3 - 18.6
Mercedes-Benz GL-Class Rankings
Not yet available
Mercedes-Benz M-Class Rankings
Available Body Styles
SUV
Available Body Styles
SUV
Available Drivetrain Options
Diesel, Gasoline
Available Drivetrain Options
Diesel, Gasoline
Mercedes-Benz GL-Class Trim Levels
GL 350 BlueTEC, GL 450 4MATIC, GL 550 4MATIC, GL 63 AMG
Mercedes-Benz M-Class Trim Levels
ML 250 BlueTEC, ML 350, ML 350 4MATIC, ML 400, ML 63 AMG
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
2026 NHTSA Overall Rating:
Not yet available
2026 NHTSA Front Crash Overall Rating:
Not yet available
2026 NHTSA Side Crash Overall Rating:
Not yet available
2026 NHTSA Rollover Rating:
Not yet available
IIHS Safety Rating:
Not yet available
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
2026 NHTSA Overall Rating:
4 out of 5 Stars
2026 NHTSA Front Crash Overall Rating:
5 out of 5 Stars
2026 NHTSA Side Crash Overall Rating:
5 out of 5 Stars
2026 NHTSA Rollover Rating:
4 out of 5 Stars
IIHS Safety Rating:
Not yet available
Base Drivetrain Specs
Horsepower:
240 hp @ 3600 rpm
Torque:
455 foot-lbs @ 1600 rpm
Power-to-Weight Ratio (higher is better):
0.044 hp per pound
Towing capacity:
Not yet available
Base Drivetrain Specs
Horsepower:
302 hp @ 6500 rpm
Torque:
273 foot-lbs @ 3500 rpm
Power-to-Weight Ratio (higher is better):
0.065 hp per pound
Towing capacity:
Not yet available
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):
19 / 26 / 22
Range (city/hwy):
502 / 686 miles
Recommended Fuel Type:
Diesel
Engine Specifications
Engine Size:
3.5 liters
Engine Configuration:
V
Number of Cylinders:
6
Transmission:
Automatic
Standard/Optional Drivetrain Type:
RWD / AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
18 / 24 / 20
Range (city/hwy):
443 / 590 miles
Recommended Fuel Type:
Gasoline
Standard/Optional Features
Air Suspension:
Standard
Alloy wheels:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
Standard
Keyless Entry:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Paddle Shifters:
Standard
Power Lift Gate:
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Sunroof/Moonroof:
Standard
Adaptive Cruise Control:
Available
Automatic Parking:
Available
Cooled/Ventilated Seats:
Available
Heated Steering Wheel:
Available
Keyless Ignition:
Available
Massage Seats:
Available
Parking Sensors:
Available
Trailer Hitch:
Available
Voice Recognition:
Available
Android Auto:
N/A
Apple CarPlay:
N/A
Captain's seat:
N/A
Front Bench Seats:
N/A
Internet Radio:
N/A
Panoramic Sunroof/Moonroof
N/A
Quad Seats:
N/A
Roof Rack:
N/A
Wifi:
N/A
Wireless Smartphone Charging:
N/A
Standard/Optional Features
Air Suspension:
N/A
Alloy wheels:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
Standard
Keyless Entry:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Paddle Shifters:
Standard
Power Lift Gate:
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Sunroof/Moonroof:
Standard
Adaptive Cruise Control:
Available
Automatic Parking:
Available
Cooled/Ventilated Seats:
Available
Heated Steering Wheel:
Available
Keyless Ignition:
Available
Massage Seats:
Available
Parking Sensors:
Available
Trailer Hitch:
Available
Voice Recognition:
Available
Android Auto:
N/A
Apple CarPlay:
N/A
Captain's seat:
N/A
Front Bench Seats:
N/A
Internet Radio:
Available
Panoramic Sunroof/Moonroof
N/A
Quad Seats:
N/A
Roof Rack:
N/A
Wifi:
N/A
Wireless Smartphone Charging:
N/A
Safety Features
Backup camera:
Standard
Driver Attention Monitoring:
Standard
360-Degree Camera:
Available
Blind Spot Monitoring:
Available
Forward Collision Warning:
Available
Lane Departure Warning:
Available
Lane Keeping Assist:
Available
Pedestrian Detection:
N/A
Rear Cross-Traffic Alert:
N/A
Rear Seat Reminder:
N/A
Safety Features
Backup camera:
N/A
Driver Attention Monitoring:
Standard
360-Degree Camera:
N/A
Blind Spot Monitoring:
Available
Forward Collision Warning:
N/A
Lane Departure Warning:
Available
Lane Keeping Assist:
N/A
Pedestrian Detection:
N/A
Rear Cross-Traffic Alert:
N/A
Rear Seat Reminder:
N/A
Interior Dimensions
Front Head Room:
41.2 inches
Front Leg Room:
40.3 inches
Front Shoulder Room:
58.5 inches
Rear Head Room:
40 inches
Rear Leg Room:
38.5 inches
Rear Shoulder Room:
58.3 inches
Cargo Space:
16 cubic feet
Cargo Space, 2nd-row seat folded down:
93.8 cubic feet
Overall Interior Volume:
160 cubic feet
Interior Dimensions
Front Head Room:
40.4 inches
Front Leg Room:
40.3 inches
Front Shoulder Room:
58.5 inches
Rear Head Room:
38.5 inches
Rear Leg Room:
38.4 inches
Rear Shoulder Room:
58.4 inches
Cargo Space:
38.2 cubic feet
Cargo Space, 2nd-row seat folded down:
80.3 cubic feet
Overall Interior Volume:
145.2 cubic feet
Exterior Dimensions
Curb Weight:
5467 lbs
Width:
84.3 inches
Height:
72.8 inches
Length:
201.6 inches
Wheelbase:
121.1 inches
Ground Clearance:
7.8 inches
Exterior Dimensions
Curb Weight:
4652 lbs
Width:
84.3 inches
Height:
70.7 inches
Length:
189.1 inches
Wheelbase:
114.8 inches
Ground Clearance:
5.4 inches
Standard Wheel/Tire Information
Wheel Size:
19.0 x 8.5 inches
Wheel Type:
aluminum alloy
Tire Size:
P275/55R19
Standard Wheel/Tire Information
Wheel Size:
19.0 x 8.0 inches
Wheel Type:
aluminum alloy
Tire Size:
255/50R19
Exterior Colors
Black
Black / Obsidian Black Metallic
Blue
Lunar Blue Metallic
Brown
Dakota Brown Metallic
Gray
Palladium Silver Metallic / Steel Grey Metallic
Red
Cinnabar Red Metallic
Silver
Diamond Silver Metallic / Iridium Silver Metallic
White
designo Diamond White Metallic / Polar White
Exterior Colors
Black
Black / Obsidian Black Metallic
Blue
Lunar Blue Metallic
Brown
Dakota Brown Metallic
Gray
Palladium Silver Metallic / Steel Grey Metallic
Red
Cinnabar Red Metallic
Silver
Diamond Silver Metallic / Iridium Silver Metallic
White
designo Diamond White Metallic / Polar White
Interior Colors
Beige
Almond Beige/Black
Black
Black
Brown
Almond Beige/Mocha / Auburn Brown / Auburn Brown/Black
Gray
Grey/Black / Grey/Dark Grey
White
Porcelain
Interior Colors
Beige
Almond Beige/Black
Black
Black
Brown
Almond Beige/Mocha / Auburn Brown / Auburn Brown/Black
Gray
Grey/Black / Grey/Dark Grey
White
Porcelain
