2025 Mercedes-Benz G-Class vs 2026 BMW X6 M

$148,250 · SUV

$134,600 · Crossover

Comparison Overview

The 2025 Mercedes-Benz G-Class captivates with its iconic, rugged silhouette and formidable off-road presence, delivering 443 hp from its stout engine. Conversely, the 2026 BMW X6 M screams high-performance aggression, launching with a staggering 617 hp and 553 lb-ft of torque, making it the undisputed speed demon here. The G-Class commands a higher entry price at $148,250, whereas the X6 M starts at $134,600, a difference of $13,650. Performance divergence is clear: the X6 M offers a massive 174 hp advantage. However, the G-Class provides marginally better efficiency at 18 combined MPG versus the X6 M's implied lower figure (since MPG wasn't provided for the X6 M, we reference the G-Class's low 18 MPG as a point of comparison against the performance-focused X6 M), and its boxier stature affords it 34.8 cu ft of cargo capacity, beating the X6 M's 27.4 cu ft.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 BMW X6 M

The X6 M's superior power and likely better on-road dynamics make the daily drive more engaging than the G-Class's truck-like handling.

👨‍👩‍👧‍👦 Best for Families

2025 Mercedes-Benz G-Class

The G-Class offers significantly more usable space with 34.8 cu ft of cargo capacity compared to the X6 M's 27.4 cu ft.

🏎️ Best for Enthusiasts

2026 BMW X6 M

The 617 hp and 553 lb-ft of torque in the X6 M provide a visceral, race-ready performance experience that the G-Class cannot match.

💰 Best Value

2026 BMW X6 M

The X6 M delivers 174 more horsepower for $13,650 less than the entry price of the G-Class.

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

You absolutely require the G-Class's legendary, commanding height (77.7 inches) and robust four-wheel-drive heritage.
Maximizing utility is key, as the G-Class boasts 34.8 cu ft of cargo volume for gear.
You prefer the visual statement of an iconic, boxy SUV design over a sleek crossover profile.

Choose the BMW X6 M if...

Blistering acceleration matters most, benefiting from the X6 M's immense 617 hp output.
You want maximum performance value, saving $13,650 compared to the G-Class MSRP.
Your driving is primarily on-road, where the X6 M's crossover chassis will offer sharper handling than the G-Class.

Key Dimensions

Dimension	Mercedes-Benz G-Class	BMW X6 M
Length	190.0"	194.8"
Width	76.0"	79.5"
Height	77.7"	66.7"
Wheelbase	113.8"	117.0"

Features Comparison

Safety

Feature	Mercedes-Benz	BMW
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	✓	✓
Dual Rear Side-Mounted Airbags	✓	—
Front Head Airbags	✓	✓
Rear 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
Brake Drying	✓	✓
Front Ventilated Disc Brakes	✓	✓
Rear Ventilated Disc Brakes	✓	✓
Brake Preparation System	✓	✓
Brake Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
Headlight Delay-Off	✓	✓
LED Headlights	✓	✓
Adaptive Headlights	✓	✓
Daytime Running Lights	✓	✓
Cornering Lights	✓	—
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Power Adjustable Headrests	✓	✓
Rear Headrests	3	3
Rear Height Adjustable Headrests	✓	✓
Rear Center 3-Point Seatbelt	✓	✓
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Self-Leveling Headlights	—	✓

Engine

Feature	Mercedes-Benz	BMW
Base Engine Displacement	3.0 L	4.4 L
Number of Cylinders	inline 6	V8
Base Engine Type	mild hybrid	mild hybrid
Horsepower	443 hp @ 6100 rpm	617 hp @ 6000 rpm
Torque	413 lb-ft @ 1950 rpm	553 lb-ft @ 1800 rpm
Number of Valves	24	32
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓

Drive Train

Feature	Mercedes-Benz	BMW
Transmission Type	9-speed shiftable automatic	8-speed shiftable automatic
Drivetrain Type	four wheel drive	all 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	✓	✓
[object Object]	—	✓
[object Object]	—	✓

Fuel

Feature	Mercedes-Benz	BMW
Fuel Type	premium unleaded (required)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	17/19 MPG	—
EPA Fuel Economy (Combined)	18 MPG	—
EPA Driving Range (City/Highway)	448.8/501.6 mi.	0/0 mi.
Fuel Tank Capacity	26.4 gal.	21.9 gal.

Comfort & Convenience

Feature	Mercedes-Benz	BMW
Push Button Start	✓	✓
Power Tilt and Telescopic Steering Wheel	✓	✓
Transmission Controls on Steering Wheel	✓	✓
Cruise Control on Steering Wheel	✓	✓
Audio Controls on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Front View Camera	✓	✓
Side View Camera	✓	✓
Rear View Camera	✓	✓
Front Parking Sensors	✓	✓
Rear Parking Sensors	✓	—
Automatic Parking Assist	✓	✓
Wireless Charging Pad	✓	✓
Adaptive Cruise Control	✓	—
Universal Remote Transmitter	✓	✓
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Front Seatback Storage	✓	✓
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	✓	✓
Rear Parking Sensors with Side Sensing	—	✓
Cruise Control	—	✓
Four Zone Climate Control	—	✓
Extended Cabin Heating/Cooling	—	✓

In Car Entertainment

Feature	Mercedes-Benz	BMW
Infotainment Display	12.3 in	14.9 in
AM/FM Stereo	✓	✓
Premium Brand Stereo System	Burmester	—
Premium Speaker Brand	Burmester	Harman/Kardon
Stereo Power	760W	464W
Speaker System	18	16
Surround Audio	Discrete	Discrete
Android Auto (Wireless)	✓	✓
Apple CarPlay (Wireless)	✓	✓
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	6 months	12 months
Auxiliary Audio Input	—	✓

Power Feature

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

Frontseats

Feature	Mercedes-Benz	BMW
Front Head Room	41.9 in.	39.3 in.
Front Leg Room	38.7 in.	40.4 in.
Front Shoulder Room	57.8 in.	61.4 in.
Seat Material: Leather	✓	—
Front Seat Type: Bucket	✓	—
Driver Seat Power Adjustments	10-way	14-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Thigh Extension	✓	✓
Driver Seat Memory Settings	3	2
Passenger Seat Power Adjustments	10-way	14-way
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Thigh Extension	✓	✓
Passenger Seat Memory Settings	3	2
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Seat Material: Premium Leather	—	✓
Front Seat Type: Sport	—	✓
Driver Seat Lumbar Support	—	Power
Passenger Seat Lumbar Support	—	Power

Rearseats

Feature	Mercedes-Benz	BMW
Rear Head Room	40.5 in.	37.5 in.
Rear Leg Room	39.5 in.	35.7 in.
Rear Shoulder Room	57.4 in.	60.7 in.
Split-Folding Rear Seatback	✓	✓
Folding Rear Seat Feature	✓	✓
Pass-Thru Center Armrest	✓	✓
Heated Rear Seats (Multi-Level)	✓	—

Tires and Wheels

Feature	Mercedes-Benz	BMW
Wheel Material	Alloy	—
Wheel Size	19 x 8.5 in	22 x 11.5 in.
Tire Type	All Season	Performance
Tire Size	275/55R19	315/30R
Spare Tire Type	Full Size Matching	Temporary
Spare Tire Location	Outside Rear Mounted	Inside Mounted
Wheel Finish	—	Painted Alloy

Suspension

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

Warranty

Feature	Mercedes-Benz	BMW
Basic Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Hybrid Component Warranty	6 yr./ 62000 mi.	—
Corrosion/Rust Warranty	4 yr./ 50000 mi.	12 yr./ unlimited mi.
Roadside Assistance	4 yr./ 50000 mi.	4 yr./ unlimited mi.
Complimentary Scheduled Maintenance	—	3 yr./ 36000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 Mercedes-Benz G-Class and 2026 BMW X6 M.

How much more powerful is the 2026 BMW X6 M compared to the 2025 G-Class?

The BMW X6 M is significantly more potent, boasting 617 hp versus the G-Class's 443 hp. This results in a substantial 174 hp advantage for the BMW crossover.

Which vehicle is better equipped for hauling gear and luggage?

The 2025 Mercedes-Benz G-Class offers superior dedicated cargo space, providing 34.8 cubic feet, easily beating the 2026 BMW X6 M's 27.4 cubic feet capacity.

What is the price difference between these two luxury SUVs?

The 2025 G-Class commands a starting MSRP of $148,250, making it $13,650 more expensive than the 2026 BMW X6 M, which begins at $134,600.

Are there major differences in their dimensions, particularly regarding height?

Yes, the G-Class is substantially taller at 77.7 inches in height, reflecting its rugged SUV design, while the sportier X6 M sits lower at 66.7 inches.

How does fuel consumption compare between these premium, required-premium-fuel vehicles?

Based on available figures, the G-Class achieves 18 combined MPG, implying the higher-output, performance-tuned X6 M will likely consume fuel at a higher rate for its aggressive power delivery.

Which vehicle utilizes a superior transmission setup?

Both use efficient shiftable automatics; the G-Class employs a 9-speed unit for broader gear ratios, while the X6 M uses an 8-speed transmission optimized for rapid shifts.