2026 Mercedes-Benz GLB vs 2026 Subaru Ascent

$43,800 · Crossover

$40,795 · Crossover

Comparison Overview

The 2026 Mercedes-Benz GLB captivates with its premium badge and efficiency, promising 28 combined MPG from its 221 hp engine, making its required premium unleaded usage slightly easier to swallow. In contrast, the 2026 Subaru Ascent flexes raw power, boasting 260 hp and 277 lb-ft of torque, instantly appealing to those seeking spirited performance, albeit settling for only 22 combined MPG on regular unleaded. This comparison pits the GLB's compact footprint (182.4 inches long) and slightly higher MSRP of $43,800 against the Ascent's larger, more robust AWD platform starting at $40,795. The GLB wins on fuel economy by a noticeable 6 MPG difference, but the Ascent delivers 39 more horsepower for nearly identical utility in a crossover segment craving dynamism.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 Mercedes-Benz GLB

The GLB's superior 28 combined MPG rating makes it the more economical choice for daily driving compared to the Ascent's 22 combined MPG.

👨‍👩‍👧‍👦 Best for Families

2026 Subaru Ascent

The Subaru Ascent offers superior spaciousness due to its larger overall dimensions (196.8 inches long) and standard All-Wheel Drive capability for diverse conditions.

🏎️ Best for Enthusiasts

2026 Subaru Ascent

The Ascent's higher output of 260 hp and 277 lb-ft of torque provides a more exhilarating performance experience than the GLB's 221 hp.

💰 Best Value

2026 Subaru Ascent

The Ascent undercuts the GLB on price by $3,005 and provides more power, making it the better initial value proposition.

Choose the Mercedes-Benz GLB if...

Fuel economy is paramount, as the GLB achieves a superior 33 MPG on the highway.
You prefer a more manageable, compact profile for navigating tight urban environments (182.4 inches in length).
You value the efficiency gained from its 8-speed automated manual transmission paired with FWD.

Choose the Subaru Ascent if...

Maximum power output is necessary, given the Ascent offers 260 hp versus the GLB's 221 hp.
You need standard All-Wheel Drive traction and the ability to use regular unleaded fuel.
You benefit from the robust handling associated with its larger 76.0-inch width and higher 71.6-inch height.

Key Dimensions

Dimension	Mercedes-Benz GLB	Subaru Ascent
Length	182.4"	196.8"
Width	72.2"	76.0"
Height	66.7"	71.6"
Wheelbase	111.4"	113.8"

Features Comparison

Safety

Feature	Mercedes-Benz	Subaru
Blind Spot Monitor	✓	✓
Driver Attention 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
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	✓	✓
Front Fog Lights	✓	—
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Height Adjustable Headrests	✓	✓
Rear Headrests	3	2
Rear Height Adjustable Headrests	✓	✓
Rear Center 3-Point Seatbelt	✓	—
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Lane Departure Warning	—	✓
Lane Keeping Assist System	—	✓
Rear Cross Traffic Alert	—	✓
Rear Ventilated Disc Brakes	—	✓
Adaptive Headlights	—	✓
Self-Leveling Headlights	—	✓

Engine

Feature	Mercedes-Benz	Subaru
Base Engine Displacement	2.0 L	2.4 L
Number of Cylinders	inline 4	flat 4
Base Engine Type	mild hybrid	gas
Horsepower	221 hp @ 5500 rpm	260 hp @ 5600 rpm
Torque	258 lb-ft @ 1800 rpm	277 lb-ft @ 2000 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	Mercedes-Benz	Subaru
Transmission Type	8-speed automated manual	continuously variable-speed automatic
Drivetrain Type	front wheel drive	all wheel drive
Center Differential Type	—	Limited Slip
Hill Descent Control	—	✓

Fuel

Feature	Mercedes-Benz	Subaru
Fuel Type	premium unleaded (required)	regular unleaded
EPA Fuel Economy (City/Highway)	25/33 MPG	20/26 MPG
EPA Fuel Economy (Combined)	28 MPG	22 MPG
EPA Driving Range (City/Highway)	397.5/524.7 mi.	386.0/501.8 mi.
Fuel Tank Capacity	15.9 gal.	19.3 gal.

Comfort & Convenience

Feature	Mercedes-Benz	Subaru
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	✓	✓
Driver Assisted Parking Assist	✓	—
Cruise Control	✓	—
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Overhead Console with Storage	✓	✓
Front Seatback Storage	✓	✓
Leather Steering Wheel	✓	✓
Dual Zone Climate Control	✓	—
Rear Ventilation Ducts	✓	—
Interior Air Filtration	✓	✓
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Turn Signal Indicators in Mirrors	✓	✓
Adaptive Cruise Control	—	✓
Universal Remote Transmitter	—	✓
3rd Row Cupholders	—	✓
Three Zone Climate Control	—	✓

In Car Entertainment

Feature	Mercedes-Benz	Subaru
Infotainment Display	10.25 in	11.6 in
AM/FM Stereo	✓	✓
Android Auto (Wireless)	✓	✓
Apple CarPlay (Wireless)	✓	✓
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	6 months	—
Speaker System	—	6
Auxiliary Audio Input	—	✓
Satellite Radio Trial Length	—	4 months

Power Feature

Feature	Mercedes-Benz	Subaru
One-Touch Power Windows	4	2
Remote Keyless Entry	✓	—
Heated Mirrors	✓	✓
Keyless Entry	—	✓

Frontseats

Feature	Mercedes-Benz	Subaru
Front Head Room	40.7 in.	41.2 in.
Front Leg Room	41.1 in.	42.2 in.
Front Shoulder Room	55.9 in.	61.1 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	—
Driver Seat Thigh Extension	✓	—
Driver Seat Memory Settings	3	—
Passenger Seat Power Adjustments	8-way	—
Passenger Seat Height Adjustment	✓	—
Passenger Seat Lumbar Support	Power	—
Passenger Seat Thigh Extension	✓	—
Passenger Seat Memory Settings	3	—
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Front Hip Room	—	57.8 in.
Passenger Seat Manual Adjustments	—	4-way

Rearseats

Feature	Mercedes-Benz	Subaru
Rear Head Room	39.3 in.	40.0 in.
Rear Leg Room	38.1 in.	38.6 in.
Rear Shoulder Room	54.9 in.	60.3 in.
Split-Folding Rear Seatback	✓	✓
Reclining Rear Seats	✓	—
Folding Center Armrest	✓	✓
Rear Hip Room	—	57.5 in.
Manual Folding Third Row Seat	—	✓

Tires and Wheels

Feature	Mercedes-Benz	Subaru
Wheel Material	Alloy	Alloy
Wheel Size	18 x 7.5 in	18 x 7.5 in
Tire Size	235/55R18	245/60R
Run Flat Tires	✓	—
Tire Type	—	All Season
Spare Tire Type	—	Temporary
Spare Tire Location	—	Underbody Mounted

Suspension

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

Warranty

Feature	Mercedes-Benz	Subaru
Basic Warranty	4 yr./ 50000 mi.	3 yr./ 36000 mi.
Drivetrain Warranty	4 yr./ 50000 mi.	5 yr./ 60000 mi.
Hybrid Component Warranty	6 yr./ 62000 mi.	—
Corrosion/Rust Warranty	4 yr./ 50000 mi.	5 yr./ unlimited mi.
Roadside Assistance	4 yr./ 50000 mi.	3 yr./ 36000 mi.

Frequently Asked Questions

Common questions about comparing the 2026 Mercedes-Benz GLB and 2026 Subaru Ascent.

What is the primary fuel cost difference between these two crossovers?

The Mercedes-Benz GLB achieves 28 combined MPG, meaning it requires premium unleaded but saves you fuel over distance compared to the Subaru Ascent, which returns only 22 combined MPG on regular unleaded.

Which vehicle offers better performance dynamics?

The Subaru Ascent is built for enthusiasts, delivering 260 horsepower and 277 lb-ft of torque, significantly outpacing the GLB's 221 horsepower figure.

How does the interior space compare based on specifications?

While the GLB offers slightly more dedicated cargo space at 22 cubic feet, the Ascent is substantially larger overall, measuring 196.8 inches in length compared to the GLB's 182.4 inches.

Is the Mercedes-Benz GLB significantly more expensive upfront?

Yes, the GLB carries an MSRP of $43,800, making it $3,005 more costly than the Ascent's starting price of $40,795.

Which car is better equipped for adverse weather conditions?

The Subaru Ascent comes standard with an All-Wheel Drive system, providing inherent traction advantages over the GLB's standard front-wheel drive configuration.