2025 Jeep Grand Wagoneer L vs 2026 Mercedes-Benz GLS

$101,945 · SUV

$90,250 · Crossover

Comparison Overview

Deciding between massive luxury SUVs often boils down to power versus pragmatism, and the 2025 Jeep Grand Wagoneer L ($101,945) versus the 2026 Mercedes-Benz GLS ($90,250) highlights this perfectly. The common dilemma is whether the Jeep's sheer presence and muscle justify the expense. The Wagoneer L boasts a commanding 510 horsepower and 500 lb-ft of torque, blowing past the GLS's 375 hp. However, this thirst for performance means the Jeep manages only 17 MPG combined, lagging behind the GLS’s respectable 21 MPG combined, which is a 4 MPG advantage for the Mercedes. Furthermore, the Jeep is significantly larger, measuring 226.7 inches long compared to the GLS's 205.0 inches, offering more passenger space but demanding more garage room. While the Jeep offers 44.2 cubic feet of cargo space, the GLS offers substantially less at 17.4 cubic feet.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 Mercedes-Benz GLS

The 2026 Mercedes-Benz GLS is the better choice for daily commuting due to its superior fuel efficiency, achieving 21 MPG combined versus the Jeep's 17 MPG.

👨‍👩‍👧‍👦 Best for Families

2025 Jeep Grand Wagoneer L

The 2025 Jeep Grand Wagoneer L wins for families needing maximum utility, thanks to its vastly larger 44.2 cu ft of cargo capacity compared to the GLS's 17.4 cu ft.

🏎️ Best for Enthusiasts

2025 Jeep Grand Wagoneer L

Automotive enthusiasts will prefer the Grand Wagoneer L for its significantly higher output of 510 horsepower and 500 lb-ft of torque.

💰 Best Value

2026 Mercedes-Benz GLS

The 2026 Mercedes-Benz GLS offers better value by saving the buyer $11,695 upfront while still delivering a premium, capable AWD experience.

Choose the Jeep Grand Wagoneer L if...

You prioritize brute force performance, benefiting from the Grand Wagoneer L's 510 horsepower engine.
You need maximum hauling capability, utilizing the 44.2 cu ft of cargo capacity.
You want the commanding road presence provided by its substantial 226.7-inch length.

Choose the Mercedes-Benz GLS if...

Your priority is minimizing fuel stops, thanks to the GLS achieving 21 MPG combined versus the Jeep's 17 MPG.
You prefer a lower entry price, saving $11,695 by opting for the GLS MSRP of $90,250.
You prefer the slightly nimbler handling associated with the GLS's shorter 205.0-inch length.

Key Dimensions

Dimension	Jeep Grand Wagoneer L	Mercedes-Benz GLS
Length	226.7"	205.0"
Width	83.6"	79.9"
Height	75.6"	71.8"
Wheelbase	130.0"	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)	427.0/610.0 mi.	452.2/571.2 mi.
Fuel Tank Capacity	30.5 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	✓	✓
Digital Rearview Mirror	✓	—
Auto-Dimming Rearview Mirror	✓	✓
Turn Signal Indicators in Mirrors	✓	✓
Cooled Storage Compartment	✓	—
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	1375W	590W
Speaker System	23	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	39.3 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	38.4 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)	✓	—
Rear Seat Ventilation	✓	—
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
Painted Alloy Wheels	✓	—
Polished Alloy Wheels	✓	—
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 L and 2026 Mercedes-Benz GLS.

How much more powerful is the Grand Wagoneer L compared to the GLS?

The 2025 Jeep Grand Wagoneer L has significantly more power, producing 510 horsepower and 500 lb-ft of torque. This dramatically outpaces the 2026 Mercedes-Benz GLS, which offers 375 horsepower and 369 lb-ft of torque.

Is the fuel economy difference between these large SUVs significant?

Yes, the difference is noticeable for frequent drivers; the GLS gets 21 MPG combined, while the Wagoneer L returns 17 MPG combined. This 4 MPG advantage means the Mercedes will cost less to run over the long haul.

Which SUV has a much lower starting price?

The 2026 Mercedes-Benz GLS starts at $90,250, which is $11,695 less expensive than the 2025 Jeep Grand Wagoneer L's starting MSRP of $101,945.

If cargo room is critical, which vehicle is the clear winner?

The Grand Wagoneer L is the undisputed champion for cargo volume, providing 44.2 cubic feet. In contrast, the GLS only offers 17.4 cubic feet, making the Jeep far better for large gear or frequent hauling.

Are both vehicles restricted to premium fuel?

Yes, based on the specifications provided, both the 2025 Jeep Grand Wagoneer L and the 2026 Mercedes-Benz GLS require premium unleaded fuel.

How does the size difference affect city maneuverability?

The Jeep Grand Wagoneer L is substantially longer at 226.7 inches versus the GLS's 205.0 inches, which means the larger Jeep will be noticeably harder to navigate and park in tight city environments.