Mercedes-Benz G-Class vs. Rolls-Royce Cullinan
iSeeCars' unbiased and data-driven comparison of the Mercedes-Benz G-Class and Rolls-Royce Cullinan 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 G-Class and the Rolls-Royce Cullinan.
In comparing the Mercedes-Benz G-Class's and the Rolls-Royce Cullinan's specifications and ratings, the Mercedes-Benz G-Class 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, resale value and interior volume. The Rolls-Royce Cullinan has the advantage in the area of base engine power. Based on this comparison of the Mercedes-Benz G-Class's and the Rolls-Royce Cullinan's specifications and ratings, the Mercedes-Benz G-Class is a better car than the Rolls-Royce Cullinan.
Pricing: A used 2025 Mercedes-Benz G-Class ranges from $158,255 to $259,999 while a used 2025 Rolls-Royce Cullinan is priced between $438,435 to $688,089. For a new model, the Mercedes-Benz G-Class's price is between $165,883 and $239,149, with the Rolls-Royce Cullinan priced between $444,525 and $612,400.
Resale/Retained Value: Looking at the 5-year depreciation rate for both models, the Mercedes-Benz G-Class loses 39.8 percent of its value and the Rolls-Royce Cullinan loses 45.6 percent of its value. This means the Mercedes-Benz G-Class retains 5.7 percentage points more of its value and has the advantage of higher resale value versus the Rolls-Royce Cullinan.
Engine Power and Fuel Efficiency Comparison: For engine performance, the Mercedes-Benz G-Class’s base engine makes 443 horsepower, and the Rolls-Royce Cullinan base engine makes 563 horsepower. The G-Class is rated to deliver an average of 18 miles per gallon, with a highway range of 502 miles. The Cullinan is rated to deliver an average of 14 miles per gallon, with a highway range of 452 miles. This gives the Mercedes-Benz G-Class the fuel efficiency and maximum range advantage over the Rolls-Royce Cullinan. Both models use premium unleaded.
Passenger Space Comparison: While both models are fullsize SUVs, the Mercedes-Benz G-Class has the advantage of offering more interior volume, reflected in more rear head room and cargo space. The Rolls-Royce Cullinan has the advantage in the areas of front leg room and rear leg room. The Mercedes-Benz G-Class and Rolls-Royce Cullinan are comparable in regards to front head room.
New Car Pricing
Asking Price:
165883 - 239149
Starting MSRP:
148250
Category Avg Starting MSRP:
(Luxury Large SUVs)
96113
Category Starting MSRP Range:
(Luxury Large SUVs)
45100 - 165500
New Car Pricing
Asking Price:
444525 - 612400
Starting MSRP:
405000
Category Avg Starting MSRP:
(Exotic Large SUVs)
319700
Category Starting MSRP Range:
(Exotic Large SUVs)
234400 - 405000
Used Car Pricing
Avg Used Car Price:
212747
Price Range:
158255 - 259999
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:
536029
Price Range:
438435 - 688089
Category Avg Price:
(Exotic Large SUVs)
536029
Category Avg Price Range:
(Exotic Large SUVs)
536029 - 536029
# Used Cars for Sale Nationally:
Avg Mileage of Used Cars for Sale:
# Good or Great Deals:
Mercedes-Benz G-Class Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
8.5 / 10
Safety:
Not available
Rolls-Royce Cullinan Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
8.2 / 10
Safety:
Not available
iSeeCars Reliability Insights for Mercedes-Benz G-Class
Avg Life Expectancy (years):
22.6
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:
0.435
iSeeCars Reliability Insights for Rolls-Royce Cullinan
Remaining Life Expectancy (years):
Typical Category Remaining Life Expectancy:
N/A
Category Remaining Life Expectancy Range:
N/A
Chance of Reaching 200k Miles for a New Car:
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
3.85731972264485
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:
0.7974248267872681
Typical Category Recalls:
(Exotic Large SUVs)
0.9
Category Range for Recalls:
(Exotic Large SUVs)
0.8 - 0.9
Mercedes-Benz G-Class Rankings
Ranking
1 out of / 18Ranking
1 out of / 18Ranking
1 out of / 18Ranking
1 out of / 18Ranking
6 out of / 18Ranking
6 out of / 17Ranking
7 out of / 18Ranking
9 out of / 18Ranking
11 out of / 18Ranking
11 out of / 18Ranking
15 out of / 18Ranking
16 out of / 18Ranking
17 out of / 17Rolls-Royce Cullinan Rankings
Available Body Styles
SUV
Available Body Styles
SUV
Available Drivetrain Options
Electric, Gasoline
Available Drivetrain Options
Gasoline
Mercedes-Benz G-Class Trim Levels
AMG G 63, G 550
Rolls-Royce Cullinan Trim Levels
Base
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
Warranty, Powertrain:
4 years
Warranty, Roadside Assistance:
4 years
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:
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
Base Drivetrain Specs
Horsepower:
443 hp @ 6100 rpm
Torque:
413 foot-lbs @ 1950 rpm
Power-to-Weight Ratio (higher is better):
0.080 hp per pound
Towing capacity:
Not yet available
Base Drivetrain Specs
Horsepower:
563 hp @ 5000 rpm
Torque:
627 foot-lbs @ 1600 rpm
Power-to-Weight Ratio (higher is better):
0.089 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):
17 / 19 / 18
Range (city/hwy):
449 / 502 miles
Recommended Fuel Type:
Premium Unleaded
Engine Specifications
Engine Size:
6.8 liters
Engine Configuration:
V
Number of Cylinders:
12
Transmission:
Automatic
Standard/Optional Drivetrain Type:
AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
12 / 19 / 14
Range (city/hwy):
286 / 452 miles
Recommended Fuel Type:
Premium Unleaded
Standard/Optional Features
Adaptive Cruise Control:
Standard
Alloy wheels:
Standard
Android Auto:
Standard
Apple CarPlay:
Standard
Automatic Parking:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
Standard
Heated Steering Wheel:
Standard
Internet Radio:
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Paddle Shifters:
Standard
Parking Sensors:
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Sunroof/Moonroof:
Standard
Trailer Hitch:
Standard
Voice Recognition:
Standard
Wifi:
Standard
Wireless Smartphone Charging:
Standard
Cooled/Ventilated Seats:
Available
Massage Seats:
Available
Roof Rack:
Available
Air Suspension:
N/A
Captain's seat:
N/A
Front Bench Seats:
N/A
Panoramic Sunroof/Moonroof
N/A
Power Lift Gate:
N/A
Quad Seats:
N/A
Standard/Optional Features
Adaptive Cruise Control:
Standard
Alloy wheels:
Standard
Android Auto:
Standard
Apple CarPlay:
Standard
Automatic Parking:
N/A
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
Standard
Heated Steering Wheel:
Standard
Internet Radio:
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Paddle Shifters:
N/A
Parking Sensors:
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Sunroof/Moonroof:
Standard
Trailer Hitch:
N/A
Voice Recognition:
Standard
Wifi:
N/A
Wireless Smartphone Charging:
Standard
Cooled/Ventilated Seats:
Standard
Massage Seats:
Standard
Roof Rack:
N/A
Air Suspension:
Standard
Captain's seat:
N/A
Front Bench Seats:
N/A
Panoramic Sunroof/Moonroof
N/A
Power Lift Gate:
Standard
Quad Seats:
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:
Standard
Forward Collision Warning:
Standard
Lane Departure Warning:
Standard
Lane Keeping Assist:
Standard
Pedestrian Detection:
Standard
Rear Cross-Traffic Alert:
N/A
Rear Seat Reminder:
N/A
Backup camera:
N/A
Interior Dimensions
Front Head Room:
41.9 inches
Front Leg Room:
38.7 inches
Front Shoulder Room:
57.8 inches
Rear Head Room:
40.5 inches
Rear Leg Room:
39.5 inches
Rear Shoulder Room:
57.4 inches
Cargo Space:
38.1 cubic feet
Cargo Space, 2nd-row seat folded down:
68.6 cubic feet
Overall Interior Volume:
143.4 cubic feet
Interior Dimensions
Front Head Room:
41.9 inches
Front Leg Room:
39.6 inches
Front Shoulder Room:
Not yet available
Rear Head Room:
40.4 inches
Rear Leg Room:
42.9 inches
Rear Shoulder Room:
Not yet available
Cargo Space:
19.8 cubic feet
Cargo Space, 2nd-row seat folded down:
68.2 cubic feet
Overall Interior Volume:
131.8 cubic feet
Exterior Dimensions
Curb Weight:
5534 lbs
Width:
86.1 inches
Height:
77.7 inches
Length:
190 inches
Wheelbase:
113.8 inches
Ground Clearance:
9.8 inches
Exterior Dimensions
Curb Weight:
6341 lbs
Width:
85.2 inches
Height:
72.2 inches
Length:
210.9 inches
Wheelbase:
129.7 inches
Ground Clearance:
6.8 inches
Standard Wheel/Tire Information
Wheel Size:
19.0 x 8.5 inches
Wheel Type:
aluminum alloy
Tire Size:
275/55R19
Standard Wheel/Tire Information
Wheel Size:
23.0 x 9.0 inches
Wheel Type:
aluminum alloy
Tire Size:
255/40R23
Interior Colors
Beige
Catalana Beige / Catalana Beige/Black / Macchiato Beige/Black / Macchiato Beige/Magma Grey
Black
Black / Black w/ Bengal Red A-Band / Black w/ Bronze Stitching / Black w/ Catalana Beige A-Band / Black w/ Espresso Brown A-Band / Black w/ Gold Stitching / Black w/ Lime Green A-Band / Black w/ Lime Green Stitching / Black w/ Platinum White A-Band / Black w/ Red Pepper A-Band / Black w/ Red Stitching / Black w/ Saddle Brown A-Band / Black w/ Sage Blue A-Band / Black w/ Titanium Grey A-Band / Black w/ White Stitching / Black w/ Yacht Blue Stitching
Brown
Espresso Brown / Espresso Brown/Black / Nut Brown/Black / Saddle Brown / Saddle Brown/Black / Tartufo Brown/Black
Gray
Dove Grey/Black / Sage Grey / Sage Grey/Black / Titanium Grey Pearl / Titanium Grey Pearl/Black
Red
Bengal Red / Bengal Red/Black / Red Pepper / Red Pepper/Black
White
Platinum White / Platinum White/Black
Interior Colors
Beige
Not available
Black
Not available
Brown
Not available
Gray
Not available
Red
Not available
White
Not available
