2025 INFINITI QX80 vs 2025 Mercedes-Benz G-Class

$82,450 · SUV

$148,250 · SUV

Comparison Overview

Choosing between the opulent, newly redesigned 2025 INFINITI QX80 and the iconic, off-road titan, the 2025 Mercedes-Benz G-Class, often boils down to budget versus legendary status. A massive $65,800 price difference separates these two large SUVs, starting the QX80 at $82,450 compared to the G-Class’s $148,250 MSRP. Performance specs are surprisingly close, with the QX80 boasting 450 horsepower and 516 lb-ft of torque, slightly edging out the G-Class's 443 hp and 413 lb-ft. Both struggle with efficiency, netting a combined 18 MPG, though the QX80 runs on recommended premium while the G-Class requires it. While the QX80 is physically longer at 211.2 inches, the G-Class offers substantially more storage with 34.8 cu ft versus the QX80's 22 cu ft, a key consideration for packing trips.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 INFINITI QX80

The QX80 offers a significantly lower initial cost, making the daily financial burden much lighter for the average commuter.

👨‍👩‍👧‍👦 Best for Families

2025 Mercedes-Benz G-Class

The G-Class provides significantly more usable space with 34.8 cu ft of cargo capacity compared to the QX80's 22 cu ft.

🏎️ Best for Enthusiasts

2025 INFINITI QX80

The QX80 delivers superior brute force with 516 lb-ft of torque compared to the G-Class's 413 lb-ft.

💰 Best Value

2025 INFINITI QX80

Given the similar 18 MPG combined rating and comparable horsepower, the QX80 offers vastly better value by saving buyers $65,800.

Choose the INFINITI QX80 if...

You prioritize maximum straight-line power, as the QX80 boasts 516 lb-ft of torque.
You need the longest vehicle for maximum road presence, measuring 211.2 inches long.
You want to save over $65,000 upfront while still getting 450 horsepower.

Choose the Mercedes-Benz G-Class if...

You require the definitive off-road capability implied by the mandatory Four Wheel Drive system.
You prioritize cargo utility, as the G-Class has 34.8 cu ft versus 22 cu ft in the QX80.
You prefer a slightly taller stance at 77.7 inches and require premium unleaded fuel that is mandatory, not just recommended.

Key Dimensions

Dimension	INFINITI QX80	Mercedes-Benz G-Class
Length	211.2"	190.0"
Width	83.3"	76.0"
Height	76.6"	77.7"
Wheelbase	121.0"	113.8"

Features Comparison

Safety

Feature	INFINITI	Mercedes-Benz
Blind Spot Monitor	✓	✓
Lane Departure Warning	✓	✓
Lane Keeping Assist System	✓	✓
Rear Cross Traffic Alert	✓	✓
Driver Attention Alert	✓	✓
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	✓
Dual Front Side-Mounted Airbags	✓	✓
Front Head Airbags	✓	✓
Rear Head Airbags	✓	✓
Third Row Head Airbags	✓	—
Passenger Airbag Occupant Sensing Deactivation	✓	✓
Electronic Stability Control	✓	✓
Traction Control System	✓	✓
LATCH System	✓	✓
Rear Door Child Safety Locks	✓	✓
Anti-lock Brakes (ABS)	4-Wheel	4-Wheel
Front Ventilated Disc Brakes	✓	✓
Rear Ventilated Disc Brakes	✓	✓
Brake Preparation System	✓	✓
Brake Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
Headlight Delay-Off	✓	✓
LED Headlights	✓	✓
Daytime Running Lights	✓	✓
Front Fog Lights	✓	—
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Height Adjustable Headrests	✓	—
Rear Headrests	2	3
Rear Height Adjustable Headrests	✓	✓
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Dual Rear Side-Mounted Airbags	—	✓
Brake Drying	—	✓
Adaptive Headlights	—	✓
Cornering Lights	—	✓
Front Power Adjustable Headrests	—	✓
Rear Center 3-Point Seatbelt	—	✓

Engine

Feature	INFINITI	Mercedes-Benz
Base Engine Displacement	3.5 L	3.0 L
Number of Cylinders	V6	inline 6
Base Engine Type	gas	mild hybrid
Horsepower	450 hp @ 5600 rpm	443 hp @ 6100 rpm
Torque	516 lb-ft @ 3600 rpm	413 lb-ft @ 1950 rpm
Number of Valves	24	24
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓

Drive Train

Feature	INFINITI	Mercedes-Benz
Transmission Type	9-speed shiftable automatic	9-speed shiftable automatic
Drivetrain Type	rear wheel drive	four wheel drive
4WD System Type	—	Full Time
Transfer Case Gearing	—	Electronic Hi-Lo
Center Differential Type	—	Limited Slip
[object Object]	—	✓
[object Object]	—	✓
[object Object]	—	✓
Hill Descent Control	—	✓

Fuel

Feature	INFINITI	Mercedes-Benz
Fuel Type	premium unleaded (recommended)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	16/20 MPG	17/19 MPG
EPA Fuel Economy (Combined)	18 MPG	18 MPG
EPA Driving Range (City/Highway)	377.6/472.0 mi.	448.8/501.6 mi.
Fuel Tank Capacity	23.6 gal.	26.4 gal.

Comfort & Convenience

Feature	INFINITI	Mercedes-Benz
Push Button Start	✓	✓
Power Tilt and Telescopic Steering Wheel	✓	✓
Audio Controls on Steering Wheel	✓	✓
Cruise Control on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Front View Camera	✓	✓
Side View Camera	✓	✓
Rear View Camera	✓	✓
Front Parking Sensors	✓	✓
Rear Parking Sensors	✓	✓
Wireless Charging Pad	✓	✓
Adaptive Cruise Control	✓	✓
Universal Remote Transmitter	✓	✓
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
3rd Row Cupholders	✓	—
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Overhead Console with Storage	✓	—
Front Seatback Storage	✓	✓
Manual Rear Seat Easy Entry	✓	—
Leather Steering Wheel	✓	✓
Heated Steering Wheel	✓	✓
Three Zone Climate Control	✓	✓
Rear Ventilation Ducts with Fan Control	✓	✓
Interior Air Filtration	✓	✓
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Turn Signal Indicators in Mirrors	✓	✓
Transmission Controls on Steering Wheel	—	✓
Automatic Parking Assist	—	✓

In Car Entertainment

Feature	INFINITI	Mercedes-Benz
Infotainment Display	14.3 in	12.3 in
AM/FM Stereo	✓	✓
Klipsch Speakers	✓	—
Stereo Power	600W	760W
Speaker System	14	18
Subwoofer Count	1	—
Android Auto (Wireless)	✓	✓
Apple CarPlay (Wireless)	✓	✓
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	With Real Time Traffic	✓
Satellite Radio Trial Period	3 months	6 months
Speed Sensitive Volume Control	✓	—
Premium Brand Stereo System	—	Burmester
Premium Speaker Brand	—	Burmester
Surround Audio	—	Discrete

Power Feature

Feature	INFINITI	Mercedes-Benz
One-Touch Power Windows	4	4
Moonroof Type	1st Row Power Glass Extended	1st Row Power Glass
Keyless Entry	✓	✓
Reverse Tilt Dual Mirrors	✓	—
Heated Mirrors	✓	✓

Frontseats

Feature	INFINITI	Mercedes-Benz
Front Head Room	39.1 in.	41.9 in.
Front Leg Room	43.8 in.	38.7 in.
Front Shoulder Room	64.2 in.	57.8 in.
Front Hip Room	59.9 in.	—
Seat Material: Leatherette	✓	—
Front Seat Type: Bucket	✓	✓
Driver Seat Power Adjustments	8-way	10-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	—
Driver Seat Memory Settings	2	3
Passenger Seat Power Adjustments	8-way	10-way
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Lumbar Support	Power	—
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Seat Material: Leather	—	✓
Driver Seat Thigh Extension	—	✓
Passenger Seat Thigh Extension	—	✓
Passenger Seat Memory Settings	—	3

Rearseats

Feature	INFINITI	Mercedes-Benz
Rear Head Room	37.8 in.	40.5 in.
Rear Leg Room	39.2 in.	39.5 in.
Rear Shoulder Room	63.7 in.	57.4 in.
Rear Hip Room	59.9 in.	—
Folding Rear Seatback	✓	—
Reclining Rear Seats	✓	—
Fixed Center Armrest	✓	—
Heated Rear Seats (Multi-Level)	✓	✓
Power Folding Third Row Seat	✓	—
Split-Folding Rear Seatback	—	✓
Folding Rear Seat Feature	—	✓
Pass-Thru Center Armrest	—	✓

Tires and Wheels

Feature	INFINITI	Mercedes-Benz
Wheel Material	Alloy	Alloy
Wheel Size	20 x 8.0 in	19 x 8.5 in
Tire Type	All Season	All Season
Tire Size	275/60R20	275/55R19
Spare Tire Type	Full Size Non-Matching	Full Size Matching
Spare Tire Location	Underbody Mounted	Outside Rear Mounted

Suspension

Feature	INFINITI	Mercedes-Benz
Four-Wheel Independent Suspension	✓	—
Front Stabilizer Bar	✓	—
Rear Stabilizer Bar	✓	—
Front Suspension Type	—	Independent
Stabilizer Bar	—	✓

Warranty

Feature	INFINITI	Mercedes-Benz
Basic Warranty	4 yr./ 60000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	6 yr./ 70000 mi.	4 yr./ 50000 mi.
Corrosion/Rust Warranty	7 yr./ unlimited mi.	4 yr./ 50000 mi.
Roadside Assistance	4 yr./ 60000 mi.	4 yr./ 50000 mi.
Complimentary Scheduled Maintenance	3 yr./ 45000 mi.	—
Hybrid Component Warranty	—	6 yr./ 62000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 INFINITI QX80 and 2025 Mercedes-Benz G-Class.

How do the fuel economy and fuel requirements compare for these large SUVs?

Both vehicles achieve a modest 18 MPG combined, though the QX80 is rated slightly better on the highway at 20 MPG compared to the G-Class's 19 MPG. Crucially, the 2025 QX80 only recommends premium fuel, whereas the G-Class strictly requires it for operation.

Which SUV offers more practical storage space for road trips?

The 2025 Mercedes-Benz G-Class wins comfortably on raw cargo volume, offering 34.8 cubic feet behind the rear seats. The 2025 INFINITI QX80 trails with only 22 cubic feet available for gear.

Is the 2025 QX80 significantly more powerful than the G-Class?

Yes, in terms of torque, the QX80 has a distinct advantage, producing 516 lb-ft compared to the G-Class's 413 lb-ft, despite the QX80 only having 7 more horsepower (450 hp vs 443 hp).

What is the biggest reason to choose the G-Class despite its higher price tag?

The primary differentiation is the drive system; the G-Class features standard Four Wheel Drive for superior traction in all conditions, whereas the QX80 comes standard with Rear Wheel Drive.

How much larger is the QX80 physically compared to the G-Class?

The QX80 is noticeably longer, measuring 211.2 inches compared to the G-Class’s 190.0 inches. However, the G-Class is slightly taller at 77.7 inches versus the QX80’s 76.6 inches.

Is the difference in MSRP a major factor in the purchase decision?

Absolutely; the difference is substantial, with the G-Class starting $65,800 higher than the QX80, positioning them in very different market segments despite their comparable size and performance metrics.