2025 Cadillac XT5 vs 2026 Mercedes-Benz GLB

$44,295 · Crossover

$43,800 · Crossover

Comparison Overview

The most significant measurable divergence between the 2025 Cadillac XT5 and the 2026 Mercedes-Benz GLB is fuel economy, where the GLB achieves 28 combined MPG compared to the XT5's 24 combined MPG, a 4 MPG advantage. The Mercedes starts at a lower MSRP of $43,800 versus the Cadillac's $44,295. Performance metrics show the XT5 producing 235 hp, marginally outpacing the GLB's 221 hp, although both vehicles share an identical torque output of 258 lb-ft. Dimensionally, the XT5 is larger overall (189.6 inches long versus 182.4 inches for the GLB), which translates to a superior 30 cubic feet of cargo capacity compared to the GLB's 22 cubic feet. The XT5 utilizes a 9-speed automatic transmission, while the GLB employs an 8-speed automated manual.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 Mercedes-Benz GLB

The 2026 GLB provides superior fuel efficiency, delivering 28 combined MPG versus the XT5's 24 combined MPG.

👨‍👩‍👧‍👦 Best for Families

2025 Cadillac XT5

The 2025 XT5 offers significantly more utility with 30 cubic feet of cargo capacity compared to the GLB's 22 cubic feet.

🏎️ Best for Enthusiasts

2025 Cadillac XT5

The Cadillac XT5 extracts 235 horsepower, offering 14 more horsepower than the GLB's 221 hp rating.

💰 Best Value

2026 Mercedes-Benz GLB

The Mercedes-Benz GLB has a lower entry price point at $43,800 compared to the XT5's $44,295 MSRP.

Choose the Cadillac XT5 if...

Maximum cargo volume is essential, as the XT5 provides 30 cu ft versus 22 cu ft in the GLB.
A slightly higher peak horsepower rating of 235 hp is preferred over the GLB's 221 hp.
A traditional 9-speed shiftable automatic transmission is desired over an 8-speed automated manual.

Choose the Mercedes-Benz GLB if...

Fuel economy is the top priority, indicated by the GLB's 28 combined MPG rating.
A lower initial purchase price of $43,800 is necessary over the XT5's $44,295.
The owner prefers a shorter overall vehicle length of 182.4 inches for easier city parking.

Key Dimensions

Dimension	Cadillac XT5	Mercedes-Benz GLB
Length	189.6"	182.4"
Width	74.9"	72.2"
Height	66.1"	66.7"
Wheelbase	112.0"	111.4"

Features Comparison

Safety

Feature	Cadillac	Mercedes-Benz
Lane Departure Warning	✓	—
Lane Keeping Assist System	✓	—
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	✓	✓
Blind Spot Monitor	—	✓
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)	22/29 MPG	25/33 MPG
EPA Fuel Economy (Combined)	24 MPG	28 MPG
EPA Driving Range (City/Highway)	418.0/551.0 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	✓	✓
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Front Seatback Storage	✓	✓
Leatherette Steering Wheel	✓	—
Dual Zone Climate Control	✓	✓
Rear Ventilation Ducts	✓	✓
Interior Air Filtration	✓	✓
Sun Sensor	✓	—
Dual Vanity Mirrors	✓	✓
Turn Signal Indicators in Mirrors	✓	✓
Driver Assisted Parking Assist	—	✓
Overhead Console with Storage	—	✓
Leather Steering Wheel	—	✓
Auto-Dimming Rearview Mirror	—	✓

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
Keyless Entry	✓	—
Heated Mirrors	✓	✓
Remote Keyless Entry	—	✓

Frontseats

Feature	Cadillac	Mercedes-Benz
Front Head Room	39.7 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	56.1 in.	—
Seat Material: Leatherette	✓	✓
Front Seat Type: Bucket	✓	✓
Driver Seat Power Adjustments	8-way	8-way
Driver Seat Height Adjustment	✓	✓
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	—	✓
Driver Seat Memory Settings	—	3
Passenger Seat Lumbar Support	—	Power
Passenger Seat Thigh Extension	—	✓
Passenger Seat Memory Settings	—	3

Rearseats

Feature	Cadillac	Mercedes-Benz
Rear Head Room	38.4 in.	39.3 in.
Rear Leg Room	39.0 in.	38.1 in.
Rear Shoulder Room	56.3 in.	54.9 in.
Rear Hip Room	54.8 in.	—
Split-Folding Rear Seatback	✓	✓
Reclining Rear Seats	✓	✓
Folding Center Armrest	✓	✓

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.	—
Hybrid Component Warranty	—	6 yr./ 62000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 Cadillac XT5 and 2026 Mercedes-Benz GLB.

What is the primary difference in running costs between the 2025 XT5 and 2026 GLB?

The 2026 GLB is projected to have lower ongoing fuel costs, achieving 28 combined MPG, which is 4 MPG better than the 2025 XT5's 24 combined MPG. Both vehicles specify premium unleaded fuel.

Which crossover provides better interior storage capability?

The 2025 Cadillac XT5 offers substantially more cargo room at 30 cubic feet. Conversely, the 2026 Mercedes-Benz GLB is limited to 22 cubic feet behind the rear seats.

How do the power outputs compare for these FWD crossovers?

The Cadillac XT5 leads slightly in horsepower with 235 hp from its engine, while the Mercedes-Benz GLB produces 221 hp. Both models are electronically rated at an identical 258 lb-ft of torque.

Is the Cadillac XT5 significantly larger than the Mercedes-Benz GLB?

Yes, the XT5 is dimensionally larger, measuring 189.6 inches in length compared to the GLB's 182.4 inches. However, the XT5 is slightly narrower at 74.9 inches versus 72.2 inches for the GLB.

What is the price difference between the base models?

The 2026 Mercedes-Benz GLB starts at $43,800, offering a $495 price advantage over the 2025 Cadillac XT5, which is listed with an MSRP of $44,295.

Do the vehicles use the same type of automatic transmission?

No, they use distinct automatic setups; the XT5 is equipped with a 9-speed shiftable automatic transmission, whereas the GLB utilizes an 8-speed automated manual transmission.