2025 Jeep Grand Wagoneer vs 2026 Mercedes-Benz GLS

$84,945 · SUV

$90,250 · Crossover

Comparison Overview

The 2025 Jeep Grand Wagoneer erupts onto the scene with a colossal 510 horsepower and 500 lb-ft of torque, promising raw, V8-fueled adventure. Contrast this brute force with the refined elegance of the 2026 Mercedes-Benz GLS, which offers a more sophisticated, albeit less powerful, 375 horsepower setup. The Jeep’s imposing footprint measures 214.7 inches long, emphasizing its sheer road presence, while the GLS maintains a more manageable 205.0 inches. Fuel economy reveals a clear divergence: the GLS achieves a better 21 MPG combined, significantly outpacing the Grand Wagoneer's 17 MPG combined. Though the Jeep commands a lower starting MSRP of $84,945 compared to the Mercedes at $90,250, buyers must weigh upfront cost against the significant 4 MPG fuel efficiency gap and the massive 135 hp performance advantage the Grand Wagoneer brings to the segment.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 Mercedes-Benz GLS

The 2026 Mercedes-Benz GLS is the winner for commuters due to its superior fuel economy, achieving 21 MPG combined versus the Jeep's 17 MPG.

👨‍👩‍👧‍👦 Best for Families

2025 Jeep Grand Wagoneer

The 2025 Jeep Grand Wagoneer offers significantly more utility with 27.4 cubic feet of cargo space compared to the GLS's 17.4 cubic feet.

🏎️ Best for Enthusiasts

2025 Jeep Grand Wagoneer

Enthusiasts will favor the Grand Wagoneer's raw power delivery, boasting 510 hp and 500 lb-ft of torque.

💰 Best Value

2025 Jeep Grand Wagoneer

The Jeep provides a much higher power output for a lower entry price of $84,945 versus the GLS's $90,250 MSRP.

Choose the Jeep Grand Wagoneer if...

You demand thrilling acceleration backed by 510 horsepower and 500 lb-ft of torque.
You require maximum hauling capacity, with 27.4 cubic feet of cargo volume available behind the seats.
You prefer the robust, traditional feel of a four-wheel drive system paired with an 8-speed automatic transmission.

Choose the Mercedes-Benz GLS if...

Minimizing fuel stops is crucial, thanks to the GLS's superior 21 MPG combined rating.
You value a more compact footprint, with the GLS measuring nearly 10 inches shorter in length (205.0 inches).
You prefer the smoother shifting feel delivered by the GLS's 9-speed automatic transmission.

Key Dimensions

Dimension	Jeep Grand Wagoneer	Mercedes-Benz GLS
Length	214.7"	205.0"
Width	83.6"	79.9"
Height	75.6"	71.8"
Wheelbase	123.0"	123.4"

Features Comparison

Safety

Feature	Jeep	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
Brake Drying	✓	✓
Front Ventilated Disc Brakes	✓	✓
Rear Solid Disc Brakes	✓	—
Brake Preparation System	✓	✓
Brake Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
Headlight Delay-Off	✓	✓
LED Headlights	✓	✓
Daytime Running Lights	✓	✓
Cornering Lights	✓	✓
Front Fog Lights	✓	—
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Power Adjustable Headrests	✓	✓
Rear Headrests	3	3
Rear Folding Headrests	✓	—
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Front Cross Traffic Alert	—	✓
Rear Ventilated Disc Brakes	—	✓
Adaptive Headlights	—	✓
Rear Height Adjustable Headrests	—	✓
Rear Center 3-Point Seatbelt	—	✓

Engine

Feature	Jeep	Mercedes-Benz
Base Engine Displacement	3.0 L	3.0 L
Number of Cylinders	inline 6	inline 6
Base Engine Type	gas	mild hybrid
Horsepower	510 hp @ 5700 rpm	375 hp @ 5800 rpm
Torque	500 lb-ft @ 3500 rpm	369 lb-ft @ 1800 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	Jeep	Mercedes-Benz
Transmission Type	8-speed shiftable automatic	9-speed shiftable automatic
Drivetrain Type	four wheel drive	all wheel drive
4WD System Type	On Demand	—
Transfer Case Gearing	Electronic Single-Speed	—
Locking Hubs	Automatic	—
Rear Differential Type	Limited Slip	—
Center Differential Type	—	Limited Slip
Hill Descent Control	—	✓

Fuel

Feature	Jeep	Mercedes-Benz
Fuel Type	premium unleaded (required)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	14/20 MPG	19/24 MPG
EPA Fuel Economy (Combined)	17 MPG	21 MPG
EPA Driving Range (City/Highway)	371.0/530.0 mi.	452.2/571.2 mi.
Fuel Tank Capacity	26.5 gal.	23.8 gal.

Comfort & Convenience

Feature	Jeep	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	✓	✓
Automatic Parking Assist	✓	✓
Wireless Charging Pad	✓	✓
Adaptive Cruise Control	✓	✓
Adjustable Pedals	✓	—
Universal Remote Transmitter	✓	✓
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
3rd Row Cupholders	✓	✓
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Overhead Console with Storage	✓	✓
Front Seatback Storage	✓	✓
Power Rear Seat Easy Entry	✓	✓
Leather Steering Wheel	✓	✓
Simulated Alloy Trim on Steering Wheel	✓	—
Heated Steering Wheel	✓	—
Four Zone Climate Control	✓	✓
Rear Ventilation Ducts with Fan Control	✓	✓
Interior Air Filtration	✓	✓
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Turn Signal Indicators in Mirrors	✓	✓
Cargo Floor Mats	✓	—
Transmission Controls on Steering Wheel	—	✓

In Car Entertainment

Feature	Jeep	Mercedes-Benz
Infotainment Display	12.0 in	12.3 in
AM/FM Stereo	✓	✓
McIntosh Speakers	✓	—
Stereo Power	950W	590W
Speaker System	19	13
Subwoofer Count	1	2
Android Auto (Wireless)	✓	✓
Apple CarPlay (Wireless)	✓	✓
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	6 months	6 months
Premium Speaker Brand	—	Burmester
Surround Audio	—	Discrete
Speed Sensitive Volume Control	—	✓

Power Feature

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

Frontseats

Feature	Jeep	Mercedes-Benz
Front Head Room	41.3 in.	39.4 in.
Front Leg Room	40.9 in.	40.3 in.
Front Shoulder Room	66.1 in.	59.3 in.
Front Hip Room	63.4 in.	60.8 in.
Seat Material: Leather	✓	—
Front Seat Type: Bucket	✓	✓
Driver Seat Power Adjustments	12-way	10-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Driver Seat Thigh Extension	✓	✓
Driver Seat Memory Settings	2	3
Passenger Seat Power Adjustments	12-way	10-way
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Lumbar Support	Power	Power
Passenger Seat Thigh Extension	✓	✓
Passenger Seat Memory Settings	2	3
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Driver Seat Ventilation	✓	✓
Passenger Seat Ventilation	✓	✓
Seat Massage Function	✓	—
Seat Material: Leatherette	—	✓

Rearseats

Feature	Jeep	Mercedes-Benz
Rear Head Room	40.0 in.	40.2 in.
Rear Leg Room	42.7 in.	41.9 in.
Rear Shoulder Room	65.2 in.	58.5 in.
Rear Hip Room	63.0 in.	60.0 in.
Folding Rear Seatback	✓	—
Reclining Rear Seats	✓	✓
Heated Rear Seats (Multi-Level)	✓	—
Third Row Seats Folds Into Floor	✓	—
Split-Folding Rear Seatback	—	✓
Folding Center Armrest	—	✓
Power Folding Third Row Seat	—	✓

Tires and Wheels

Feature	Jeep	Mercedes-Benz
Wheel Finish	Painted Alloy	—
Wheel Dimensions	22 x 9.0 in	—
Tire Type	All Season	All Season
Tire Size	285/45R22	315/40R21
Spare Tire Type	Full Size Non-Matching	Temporary
Spare Tire Location	Underbody Mounted	Inside Mounted
Wheel Material	—	Alloy
Wheel Size	—	21 x 11.0 in.

Suspension

Feature	Jeep	Mercedes-Benz
Four-Wheel Independent Suspension	✓	✓
Front Stabilizer Bar	✓	✓
Rear Stabilizer Bar	✓	✓

Warranty

Feature	Jeep	Mercedes-Benz
Basic Warranty	3 yr./ 36000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	5 yr./ 60000 mi.	4 yr./ 50000 mi.
Corrosion/Rust Warranty	5 yr./ unlimited mi.	4 yr./ 50000 mi.
Roadside Assistance	5 yr./ 60000 mi.	4 yr./ 50000 mi.
Hybrid Component Warranty	—	6 yr./ 62000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 Jeep Grand Wagoneer and 2026 Mercedes-Benz GLS.

How much more powerful is the 2025 Jeep Grand Wagoneer than the 2026 Mercedes-Benz GLS?

The Grand Wagoneer delivers a staggering advantage, producing 510 horsepower and 500 lb-ft of torque. This contrasts sharply with the GLS's 375 horsepower and 369 lb-ft of torque, creating a 135 hp deficit for the Mercedes.

Which SUV costs less to purchase initially?

The 2025 Jeep Grand Wagoneer has the lower starting Manufacturer's Suggested Retail Price (MSRP) at $84,945. The 2026 Mercedes-Benz GLS commands a $90,250 starting price, making it $5,305 more expensive.

Is the difference in fuel efficiency significant between these two luxury behemoths?

Yes, the difference is substantial over the long term. The GLS achieves 21 MPG combined, while the V8-powered Grand Wagoneer is rated lower at 17 MPG combined, representing a 4 MPG difference.

Which vehicle offers more space for luggage and gear?

The Jeep Grand Wagoneer is the clear leader in pure cargo capacity, offering 27.4 cubic feet behind the final row. The Mercedes-Benz GLS provides less utility here, with only 17.4 cubic feet of space.

Are both vehicles restricted to premium fuel?

Yes, both the 2025 Jeep Grand Wagoneer and the 2026 Mercedes-Benz GLS explicitly require premium unleaded fuel for optimal performance from their respective powertrains.

What is the difference in vehicle size, specifically in length?

The Jeep Grand Wagoneer is significantly longer, measuring 214.7 inches from bumper to bumper. The Mercedes-Benz GLS is the shorter vehicle, clocking in at 205.0 inches long, making it easier to navigate tight urban spots.