2026 Buick Enclave vs 2026 Mercedes-Benz GLB
Comparison Overview
Deciding between the roomy comfort of the 2026 Buick Enclave and the nimble efficiency of the 2026 Mercedes-Benz GLB is a classic crossover dilemma: do you prioritize outright space or better running costs? The Enclave commands presence at 207.6 inches long, offering plenty of shoulder room, but the GLB counters with significantly better fuel economy, achieving 28 combined MPG versus the Buick's 23 combined MPG. Performance enthusiasts will immediately notice the 107-horsepower gap, as the Enclave boasts 328 hp to the GLB's 221 hp. While the Buick starts higher at $46,200 compared to the GLB's $43,800, the smaller footprint of the GLB (72.2 inches wide) makes it easier to navigate tight city streets, although cargo capacity is remarkably close at 22.9 cu ft for the Buick and 22 cu ft for the Benz. This comparison truly boils down to power needs versus long-term fuel savings.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2026 Mercedes-Benz GLB
The 2026 Mercedes-Benz GLB is the winner for commuters due to its superior 28 combined MPG rating versus the Enclave's 23 MPG.
2026 Buick Enclave
The 2026 Buick Enclave wins for families because its larger exterior dimensions (207.6 inches long) likely translate to easier third-row access and superior passenger comfort.
2026 Buick Enclave
Enthusiasts will prefer the Enclave for its significant power advantage, delivering 328 hp and 326 lb-ft of torque compared to the GLB's lower output.
2026 Mercedes-Benz GLB
The GLB offers better initial value, starting $2,400 cheaper at $43,800, combined with lower anticipated running costs from its better fuel efficiency.
Choose the Buick Enclave if...
- You frequently haul larger families or cargo and benefit from the 207.6-inch length.
- You require substantial power, appreciating the 328 hp and 326 lb-ft of torque.
- You prefer using regular unleaded fuel over the GLB's premium requirement.
Choose the Mercedes-Benz GLB if...
- Minimizing fuel stops is a priority, leveraging the 33 highway MPG rating.
- You prefer the lower entry price point of $43,800.
- You need a more compact vehicle, evident by its 72.2-inch width for easier city parking.
Key Dimensions
| Dimension | Buick Enclave | Mercedes-Benz GLB |
|---|---|---|
| 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 | — | ✓ |
| 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 | ✓ | ✓ |
| Remote Keyless Entry | — | ✓ |
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. | — |
| Hybrid Component Warranty | — | 6 yr./ 62000 mi. |
Frequently Asked Questions
Common questions about comparing the 2026 Buick Enclave and 2026 Mercedes-Benz GLB.
Is the fuel difference between the two significant enough to worry about?
Yes, the 5 MPG difference in combined ratings (28 MPG for GLB vs. 23 MPG for Enclave) adds up over a year of driving. Additionally, the GLB requires premium fuel, which further affects long-term running costs, even though the Enclave has a lower initial price.
How does the 107 horsepower difference feel in real-world driving?
That 107 hp gap, with the Enclave at 328 hp and the GLB at 221 hp, is very noticeable when merging onto highways or attempting quick overtakes. The Enclave will feel significantly punchier and more responsive when fully loaded.
Which vehicle is easier to park and maneuver in tight urban areas?
The 2026 Mercedes-Benz GLB is the clear choice here; it is substantially smaller than the Buick Enclave, measuring nearly 25 inches shorter in length and over 7 inches narrower.
Are the cargo capacities very different for daily errands?
Not really; the space is quite similar for a standard configuration, with the Enclave offering 22.9 cu ft and the GLB offering 22 cu ft. Any major differences will appear when folding down those rear seats.
Does the required fuel type impact the initial value assessment?
It certainly does; while the GLB costs $2,400 less upfront, the mandatory premium fuel might erase those initial savings relatively quickly, especially for high-mileage drivers comparing it to the Enclave's regular unleaded requirement.
Are both crossovers similarly sized for passenger comfort?
The Enclave is physically larger in every dimension (207.6 inches long vs. 182.4 inches), suggesting it will offer more comfortable space for passengers, especially those in the second or third rows.
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