2025 Cadillac XT6 vs 2025 Mercedes-Benz GLB-Class

$49,195 · Crossover

$45,800 · Crossover

Comparison Overview

The 2025 Cadillac XT6 bursts onto the scene with bold American presence and a robust 235 hp output, offering a more substantial road presence at 198.5 inches long. Conversely, the 2025 Mercedes-Benz GLB-Class charms with sharp European efficiency, netting an impressive 28 MPG combined from its 221 hp engine. This comparison pits American bulk and prestige against German compact agility. While the Cadillac commands a higher starting MSRP of $49,195 against the GLB's $45,800, the Mercedes rewards efficient driving, exceeding the XT6's 23 MPG combined rating by a full 5 MPG. Both offer 258 lb-ft of torque, suggesting similar low-end pull, but the GLB is the clear winner on practicality, boasting 22 cubic feet of cargo capacity compared to the XT6's comparatively small 12.6 cubic feet. The choice is between premium space or superior economy.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Mercedes-Benz GLB-Class

The GLB-Class wins for commuters due to its superior 28 MPG combined fuel economy.

👨‍👩‍👧‍👦 Best for Families

2025 Mercedes-Benz GLB-Class

The GLB-Class provides significantly more utility with 22 cubic feet of cargo space versus the XT6's 12.6 cubic feet.

🏎️ Best for Enthusiasts

2025 Cadillac XT6

The Cadillac XT6 offers a slightly higher horsepower figure at 235 hp, hinting at a marginally stronger performance capability.

💰 Best Value

2025 Mercedes-Benz GLB-Class

The Mercedes-Benz GLB-Class starts $3,395 lower and delivers 5 more MPG combined, representing substantially better overall value.

Choose the Cadillac XT6 if...

You prioritize a commanding presence provided by its greater length of 198.5 inches.
You prefer the slightly higher peak output of 235 horsepower from the engine.
You value the smooth operation of a traditional 9-speed shiftable automatic transmission.

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

Fuel efficiency is paramount, given its excellent 33 MPG highway rating.
You need maximum utility, as its 22 cubic feet of cargo space dwarfs the competitor's.
You want to save $3,395 on the initial purchase price, starting at $45,800.

Key Dimensions

Dimension	Cadillac XT6	Mercedes-Benz GLB-Class
Length	198.5"	182.4"
Width	77.3"	72.2"
Height	69.9"	66.7"
Wheelbase	113.0"	111.4"

Features Comparison

Safety

Feature	Cadillac	Mercedes-Benz
Blind Spot Monitor	✓	✓
Lane Departure Warning	✓	—
Lane Keeping Assist System	✓	—
Rear Cross Traffic Alert	✓	—
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	✓
Dual Front 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
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	✓	✓
Cornering Lights	✓	—
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Height Adjustable Headrests	✓	✓
Rear Headrests	2	3
Rear Center 3-Point Seatbelt	✓	✓
Engine Immobilizer	✓	✓
Driver Attention Alert	—	✓
Brake Drying	—	✓
Rear Solid Disc Brakes	—	✓
Front Fog Lights	—	✓
Rear Height Adjustable Headrests	—	✓
Anti-Theft Alarm System (Remote)	—	✓

Engine

Feature	Cadillac	Mercedes-Benz
Base Engine Displacement	2.0 L	2.0 L
Number of Cylinders	inline 4	inline 4
Base Engine Type	gas	mild hybrid
Horsepower	235 hp @ 5000 rpm	221 hp @ 5500 rpm
Torque	258 lb-ft @ 1500 rpm	258 lb-ft @ 1800 rpm
Number of Valves	16	16
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓
Cylinder Deactivation	✓	—

Drive Train

Feature	Cadillac	Mercedes-Benz
Transmission Type	9-speed shiftable automatic	8-speed automated manual
Drivetrain Type	front wheel drive	front wheel drive

Fuel

Feature	Cadillac	Mercedes-Benz
Fuel Type	premium unleaded (recommended)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	21/27 MPG	25/33 MPG
EPA Fuel Economy (Combined)	23 MPG	28 MPG
EPA Driving Range (City/Highway)	399.0/513.0 mi.	397.5/524.7 mi.
Fuel Tank Capacity	19.0 gal.	15.9 gal.

Comfort & Convenience

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

In Car Entertainment

Feature	Cadillac	Mercedes-Benz
Infotainment Display	8.0 in	10.25 in
AM/FM Stereo	✓	✓
Premium Speaker Brand	Bose	—
Speaker System	8	—
Android Auto (Wireless)	✓	✓
Apple CarPlay (Wireless)	✓	✓
USB Port	✓	✓
Auxiliary Audio Input	✓	—
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	3 months	6 months
Speed Sensitive Volume Control	✓	—

Power Feature

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

Frontseats

Feature	Cadillac	Mercedes-Benz
Front Head Room	39.8 in.	40.7 in.
Front Leg Room	41.2 in.	41.1 in.
Front Shoulder Room	58.3 in.	55.9 in.
Front Hip Room	50.1 in.	—
Seat Material: Leatherette	✓	✓
Front Seat Type: Bucket	✓	✓
Driver Seat Power Adjustments	8-way	8-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Memory Settings	2	3
Passenger Seat Power Adjustments	6-way	8-way
Passenger Seat Manual Adjustments	2-way	—
Passenger Seat Height Adjustment	✓	✓
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Driver Seat Lumbar Support	—	Power
Driver Seat Thigh Extension	—	✓
Passenger Seat Lumbar Support	—	Power
Passenger Seat Thigh Extension	—	✓
Passenger Seat Memory Settings	—	3

Rearseats

Feature	Cadillac	Mercedes-Benz
Rear Head Room	39.1 in.	39.3 in.
Rear Leg Room	39.1 in.	38.1 in.
Rear Shoulder Room	57.4 in.	54.9 in.
Rear Hip Room	55.7 in.	—
Split-Folding Rear Seatback	✓	✓
Folding Center Armrest	✓	✓
Power Folding Third Row Seat	✓	—
Reclining Rear Seats	—	✓

Tires and Wheels

Feature	Cadillac	Mercedes-Benz
Wheel Finish	Painted Alloy	—
Wheel Diameter	18 in	—
Tire Type	All Season	—
Tire Size	P235/65R	235/55R18
Spare Tire Type	Temporary	—
Spare Tire Location	Inside Mounted	—
Wheel Material	—	Alloy
Wheel Size	—	18 x 7.5 in
Run Flat Tires	—	✓

Suspension

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

Warranty

Feature	Cadillac	Mercedes-Benz
Basic Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	6 yr./ 70000 mi.	4 yr./ 50000 mi.
Corrosion/Rust Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Roadside Assistance	6 yr./ 70000 mi.	4 yr./ 50000 mi.
Complimentary Scheduled Maintenance	1 yr./ unlimited mi.	—

Frequently Asked Questions

Common questions about comparing the 2025 Cadillac XT6 and 2025 Mercedes-Benz GLB-Class.

How do the fuel requirements and costs compare between the XT6 and GLB-Class?

The Cadillac XT6 recommends premium unleaded and achieves 23 MPG combined, while the Mercedes-Benz GLB-Class requires premium unleaded and delivers a notably better 28 MPG combined rating. This 5 MPG difference impacts long-term running costs significantly.

Which vehicle is physically larger and how does that affect utility?

The Cadillac XT6 is significantly larger overall (198.5 inches long versus 182.4 inches for the GLB-Class), yet surprisingly, the smaller Mercedes GLB offers vastly superior cargo capacity at 22 cubic feet compared to the XT6's 12.6 cubic feet.

Is there a noticeable power difference in horsepower between the two crossovers?

Yes, the Cadillac XT6 holds a slight edge with 235 horsepower compared to the GLB-Class's 221 horsepower. However, both vehicles produce an identical 258 lb-ft of torque.

What is the starting MSRP difference between the 2025 XT6 and the 2025 GLB-Class?

The 2025 Cadillac XT6 starts at a higher $49,195, which is $3,395 more expensive than the 2025 Mercedes-Benz GLB-Class starting price of $45,800.

What are the differences in transmission types offered?

The Cadillac XT6 utilizes a traditional 9-speed shiftable automatic transmission for potentially smoother shifts, whereas the Mercedes-Benz GLB-Class uses an 8-speed automated manual transmission.