2025 Buick Enclave vs 2025 Mercedes-Benz GLB-Class

$45,100 · Crossover

$45,800 · Crossover

Comparison Overview

The most striking disparity between the 2025 Buick Enclave and the 2025 Mercedes-Benz GLB-Class is the power output, with the Enclave offering a substantial 107 additional horsepower (328 hp vs. 221 hp). Conversely, the GLB-Class maintains a 5 MPG combined efficiency advantage, achieving 28 MPG compared to the Enclave’s 23 MPG, although the GLB requires more expensive premium fuel. Dimensionally, the Enclave is significantly larger at 207.6 inches long versus the GLB’s 182.4 inches, translating to comparable maximum cargo volumes (22.9 cu ft vs. 22 cu ft). Pricing is tightly clustered, starting at $45,100 for the Buick and $45,800 for the Mercedes. While the Enclave leads in sheer mechanical output, the GLB prioritizes fuel economy and a smaller footprint for urban maneuverability.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Mercedes-Benz GLB-Class

The GLB-Class offers superior efficiency, achieving 28 combined MPG, making it cheaper for daily transit than the Enclave's 23 MPG.

👨‍👩‍👧‍👦 Best for Families

2025 Buick Enclave

The substantially larger 2025 Buick Enclave provides greater interior volume, evidenced by its 207.6-inch length compared to the GLB's 182.4 inches.

🏎️ Best for Enthusiasts

2025 Buick Enclave

The Buick Enclave delivers 328 hp and 326 lb-ft of torque, significantly outclassing the GLB-Class's 221 hp and 258 lb-ft of torque.

💰 Best Value

2025 Buick Enclave

Despite having $700 less MSRP, the Enclave provides 107 more horsepower, representing superior output per dollar spent.

Choose the Buick Enclave if...

Maximum horsepower output is a priority, as the Enclave delivers 328 hp versus the GLB's 221 hp.
You need the larger physical presence, as the Enclave measures 207.6 inches in length.
You prefer using less expensive regular unleaded fuel over the GLB's premium requirement.

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

Fuel economy is the top concern, with the GLB achieving 28 combined MPG versus the Enclave’s 23 MPG.
A lower initial purchase price is desired, as the GLB starts at $45,800 compared to the Enclave’s $45,100 MSRP (Note: Selecting car2 for value based on performance per dollar, but listing price proximity here).
Maneuvering and parking in tight urban areas is necessary due to its significantly shorter 182.4-inch length.

Key Dimensions

Dimension	Buick Enclave	Mercedes-Benz GLB-Class
Length	207.6"	182.4"
Width	79.6"	72.2"
Height	71.0"	66.7"
Wheelbase	120.9"	111.4"

Features Comparison

Safety

Feature	Buick	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	✓	✓
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
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	✓	✓
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Height Adjustable Headrests	✓	✓
Rear Headrests	2	3
Rear Folding Headrests	✓	—
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Driver Attention Alert	—	✓
Brake Drying	—	✓
Rear Solid Disc Brakes	—	✓
Front Fog Lights	—	✓
Rear Height Adjustable Headrests	—	✓
Rear Center 3-Point Seatbelt	—	✓

Engine

Feature	Buick	Mercedes-Benz
Base Engine Displacement	2.5 L	2.0 L
Number of Cylinders	inline 4	inline 4
Base Engine Type	gas	mild hybrid
Horsepower	328 hp @ 5500 rpm	221 hp @ 5500 rpm
Torque	326 lb-ft @ 3500 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	✓	✓

Drive Train

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

Fuel

Feature	Buick	Mercedes-Benz
Fuel Type	regular unleaded	premium unleaded (required)
EPA Fuel Economy (City/Highway)	20/27 MPG	25/33 MPG
EPA Fuel Economy (Combined)	23 MPG	28 MPG
EPA Driving Range (City/Highway)	388.0/523.8 mi.	397.5/524.7 mi.
Fuel Tank Capacity	19.4 gal.	15.9 gal.

Comfort & Convenience

Feature	Buick	Mercedes-Benz
Push Button Start	✓	✓
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	✓	✓
Rear Parking Sensors	✓	✓
Wireless Charging Pad	✓	✓
Adaptive Cruise Control	✓	—
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
3rd Row Cupholders	✓	—
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Front Seatback Storage	✓	✓
Manual Rear Seat Easy Entry	✓	—
Leatherette Steering Wheel	✓	—
Heated 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	✓	✓
Transmission Controls on Steering Wheel	—	✓
Front Parking Sensors	—	✓
Driver Assisted Parking Assist	—	✓
Cruise Control	—	✓
Universal Remote Transmitter	—	✓
Overhead Console with Storage	—	✓
Leather Steering Wheel	—	✓
Dual Zone Climate Control	—	✓
Rear Ventilation Ducts	—	✓

In Car Entertainment

Feature	Buick	Mercedes-Benz
Infotainment Display	30.0 in	10.25 in
AM/FM Stereo	✓	✓
Premium Speaker Brand	Bose	—
Speaker System	12	—
Subwoofer Count	1	—
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	Buick	Mercedes-Benz
One-Touch Power Windows	4	4
Keyless Entry	✓	✓
Heated Mirrors	✓	✓

Frontseats

Feature	Buick	Mercedes-Benz
Front Head Room	42.6 in.	40.7 in.
Front Leg Room	44.3 in.	41.1 in.
Front Shoulder Room	62.2 in.	55.9 in.
Front Hip Room	58.7 in.	—
Seat Material: Leatherette	✓	✓
Front Seat Type: Bucket	✓	✓
Driver Seat Power Adjustments	8-way	8-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Passenger Seat Power Adjustments	6-way	8-way
Passenger Seat Manual Adjustments	2-way	—
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Lumbar Support	Power	Power
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Driver Seat Thigh Extension	—	✓
Driver Seat Memory Settings	—	3
Passenger Seat Thigh Extension	—	✓
Passenger Seat Memory Settings	—	3

Rearseats

Feature	Buick	Mercedes-Benz
Rear Head Room	40.0 in.	39.3 in.
Rear Leg Room	41.5 in.	38.1 in.
Rear Shoulder Room	62.1 in.	54.9 in.
Rear Hip Room	58.5 in.	—
Folding Rear Seatback	✓	—
Reclining Rear Seats	✓	✓
Folding Center Armrest	✓	✓
Manual Folding Third Row Seat	✓	—
Split-Folding Rear Seatback	—	✓

Tires and Wheels

Feature	Buick	Mercedes-Benz
Wheel Finish	Painted Alloy	—
Wheel Diameter	20 in.	—
Tire Type	All Season	—
Tire Size	P255/55R20	235/55R18
Spare Tire Type	Temporary	—
Spare Tire Location	Underbody Mounted	—
Wheel Material	—	Alloy
Wheel Size	—	18 x 7.5 in
Run Flat Tires	—	✓

Suspension

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

Warranty

Feature	Buick	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	6 yr./ 100000 mi.	4 yr./ 50000 mi.
Roadside Assistance	5 yr./ 60000 mi.	4 yr./ 50000 mi.
Complimentary Scheduled Maintenance	1 yr./ unlimited mi.	—

Frequently Asked Questions

Common questions about comparing the 2025 Buick Enclave and 2025 Mercedes-Benz GLB-Class.

Which crossover is more powerful between the 2025 Buick Enclave and the 2025 Mercedes-Benz GLB-Class?

The 2025 Buick Enclave is considerably more powerful, producing 328 horsepower and 326 lb-ft of torque. The 2025 Mercedes-Benz GLB-Class lags behind with 221 horsepower and 258 lb-ft of torque, resulting in a 107 hp gap favoring the Enclave.

How much better is the fuel economy of the GLB-Class compared to the Enclave?

The Mercedes-Benz GLB-Class achieves a combined 28 MPG (25 city/33 highway), which is 5 MPG better than the Buick Enclave's 23 combined MPG (20 city/27 highway).

Does the difference in MSRP suggest a significant value gap?

The MSRPs are very close, with the Enclave at $45,100 and the GLB at $45,800. However, considering the Enclave offers 107 more horsepower for $700 less, it presents a stronger performance-to-cost ratio.

Do both vehicles have the same space for cargo?

The cargo capacities are nearly identical when looking at the stated figures. The Buick Enclave offers 22.9 cubic feet, narrowly surpassing the Mercedes-Benz GLB-Class's 22 cubic feet.

What is the major difference in required fuel type for these two crossovers?

The 2025 Buick Enclave runs on regular unleaded fuel, which is generally cheaper at the pump. The 2025 Mercedes-Benz GLB-Class explicitly requires premium unleaded fuel, which could increase long-term running costs despite its better MPG rating.

Which vehicle is significantly larger overall?

The Buick Enclave is much larger externally, measuring 207.6 inches long, 79.6 inches wide, and 71.0 inches tall. The GLB-Class is considerably more compact at 182.4 inches long and 66.7 inches high.