2025 Audi Q3 vs 2025 Mercedes-Benz GLB-Class

$39,800 · Crossover

$45,800 · Crossover

Comparison Overview

Choosing between the 2025 Audi Q3 and the 2025 Mercedes-Benz GLB-Class often boils down to budget versus long-term efficiency and space. While the Audi Q3 hits the lot at a competitive MSRP of $39,800, saving you $6,000 upfront compared to the GLB-Class's $45,800 entry point, that initial saving might be offset by fuel costs. The Q3 sips regular unleaded while returning a combined 23 MPG, whereas the GLB-Class requires premium fuel but earns a superior combined 28 MPG. Although the Q3 offers slightly more overall power with 228 hp against the GLB’s 221 hp, the Mercedes counters with greater size, measuring 66.7 inches in height compared to the Audi's 62.9 inches, suggesting a more spacious cabin experience despite having slightly less cargo room at 22.0 cu ft versus the Q3's 23.7 cu ft.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Mercedes-Benz GLB-Class

The Mercedes-Benz GLB-Class wins for commuters due to its significantly better 28 MPG combined fuel economy rating.

👨‍👩‍👧‍👦 Best for Families

2025 Audi Q3

The Audi Q3 wins for families needing slightly more practical storage, offering 23.7 cubic feet of cargo capacity compared to the GLB-Class's 22.0 cubic feet.

🏎️ Best for Enthusiasts

2025 Audi Q3

The Audi Q3 appeals more to driving enthusiasts as it boasts higher peak horsepower at 228 hp and greater torque at 251 lb-ft.

💰 Best Value

2025 Audi Q3

The Audi Q3 provides better immediate value by starting $6,000 lower on MSRP while still delivering AWD capability.

Choose the Audi Q3 if...

You prioritize a lower upfront purchase price, with an MSRP of $39,800.
You prefer slightly more outright power, boasting 228 hp and 251 lb-ft of torque.
You want the convenience of using regular unleaded gasoline instead of premium fuel.

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

Fuel economy is paramount, as the GLB-Class achieves a superior 28 MPG combined rating.
You need a taller vehicle for easier entry/exit or headroom, as it stands 66.7 inches high.
You prefer the brand's unique driving feel associated with the 8-speed automated manual transmission.

Key Dimensions

Dimension	Audi Q3	Mercedes-Benz GLB-Class
Length	176.6"	182.4"
Width	72.8"	72.2"
Height	62.9"	66.7"
Wheelbase	105.5"	111.4"

Features Comparison

Safety

Feature	Audi	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 Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
Headlight Delay-Off	✓	✓
LED Headlights	✓	✓
Self-Leveling Headlights	✓	—
Daytime Running Lights	✓	✓
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Multi-Adjustable Headrests	✓	—
Rear Headrests	3	3
Rear Height Adjustable Headrests	✓	✓
Rear Center 3-Point Seatbelt	✓	✓
Engine Immobilizer	✓	✓
Driver Attention Alert	—	✓
Brake Drying	—	✓
Rear Solid Disc Brakes	—	✓
Brake Preparation System	—	✓
Front Fog Lights	—	✓
Front Height Adjustable Headrests	—	✓
Anti-Theft Alarm System (Remote)	—	✓

Engine

Feature	Audi	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	228 hp	221 hp @ 5500 rpm
Torque	251 lb-ft	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	Audi	Mercedes-Benz
Transmission Type	8-speed shiftable automatic	8-speed automated manual
Drivetrain Type	all wheel drive	front wheel drive
Center Differential Type	Limited Slip	—
Hill Descent Control	✓	—

Fuel

Feature	Audi	Mercedes-Benz
Fuel Type	regular unleaded	premium unleaded (required)
EPA Fuel Economy (City/Highway)	20/28 MPG	25/33 MPG
EPA Fuel Economy (Combined)	23 MPG	28 MPG
EPA Driving Range (City/Highway)	318.0/445.2 mi.	397.5/524.7 mi.
Fuel Tank Capacity	15.9 gal.	15.9 gal.

Comfort & Convenience

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

In Car Entertainment

Feature	Audi	Mercedes-Benz
Infotainment Display	10.1 in	10.25 in
AM/FM Stereo	✓	✓
Stereo Power	180W	—
Speaker System	10	—
Android Auto (Wired)	✓	—
Apple CarPlay (Wired)	✓	—
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Android Auto (Wireless)	—	✓
Apple CarPlay (Wireless)	—	✓
Satellite Radio	—	✓
Satellite Radio Trial Period	—	6 months

Power Feature

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

Frontseats

Feature	Audi	Mercedes-Benz
Front Head Room	39.6 in.	40.7 in.
Front Leg Room	40.0 in.	41.1 in.
Front Shoulder Room	56.7 in.	55.9 in.
Seat Material: Leather	✓	—
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	8-way	8-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
Seat Material: Leatherette	—	✓
Driver Seat Thigh Extension	—	✓
Driver Seat Memory Settings	—	3
Passenger Seat Thigh Extension	—	✓
Passenger Seat Memory Settings	—	3

Rearseats

Feature	Audi	Mercedes-Benz
Rear Head Room	37.6 in.	39.3 in.
Rear Leg Room	36.1 in.	38.1 in.
Rear Shoulder Room	55.1 in.	54.9 in.
Split-Folding Rear Seatback	✓	✓
Reclining Rear Seats	✓	✓
Folding Center Armrest	✓	✓

Tires and Wheels

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

Suspension

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

Warranty

Feature	Audi	Mercedes-Benz
Basic Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Corrosion/Rust Warranty	12 yr./ unlimited mi.	4 yr./ 50000 mi.
Roadside Assistance	4 yr./ unlimited mi.	4 yr./ 50000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 Audi Q3 and 2025 Mercedes-Benz GLB-Class.

How much more does it cost to run the 2025 Audi Q3 versus the GLB-Class over a year?

While the Q3's MSRP is $6,000 less, the GLB-Class's 5 MPG advantage (28 combined vs. 23 combined) means you will spend less on fuel annually with the Mercedes, offsetting some of the initial price difference.

Is the Mercedes GLB-Class actually bigger than the Audi Q3 inside?

The GLB-Class is physically longer (182.4 inches vs. 176.6 inches) and noticeably taller at 66.7 inches, giving it a more commanding stance and potentially better passenger comfort, even though the Q3 technically offers 1.7 cubic feet more cargo space (23.7 vs 22.0 cu ft).

Which vehicle uses the cheaper fuel?

The 2025 Audi Q3 runs on regular unleaded gasoline, which is generally less expensive per gallon than the premium unleaded required for the 2025 Mercedes-Benz GLB-Class.

Do both crossovers come standard with All-Wheel Drive?

No, the Audi Q3 comes standard with all-wheel drive, while the specific configuration listed for the Mercedes-Benz GLB-Class utilizes a front-wheel drive setup.

If I like responsive shifting, which transmission is better?

The Audi Q3 uses a traditional 8-speed shiftable automatic, which many drivers find predictable and smooth, whereas the GLB-Class features an 8-speed automated manual transmission that operates differently.

How significant is the horsepower gap between these two models?

The difference is minor, with the Audi Q3 leading at 228 hp compared to the GLB-Class's 221 hp, but the GLB-Class actually produces more torque at 258 lb-ft versus the Audi's 251 lb-ft.