2025 INFINITI QX55 vs 2026 Mercedes-Benz GLC Coupe

$50,150 · Crossover

$59,650 · Crossover

Comparison Overview

The 2025 INFINITI QX55 bursts onto the scene with a spirited 268 hp and a lower starting MSRP of $50,150, blending coupe styling with AWD practicality. Conversely, the 2026 Mercedes-Benz GLC Coupe dials up the low-end grunt with 295 lb-ft of torque, but demands a premium price tag starting at $59,650. While the Mercedes offers superior fuel efficiency, achieving 26 combined MPG versus the QX55’s 25 combined MPG, the QX55 provides substantially more usable space with 26.9 cu ft of cargo capacity compared to the GLC Coupe's tighter 19.2 cu ft. Driving dynamics differ too: the INFINITI uses a traditional CVT, while the Mercedes employs a crisper 9-speed automatic transmission. For buyers seeking dynamic coupe styling without crossing the $60,000 threshold, the QX55 presents a compelling, more spacious alternative to the refined German entrant.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 Mercedes-Benz GLC Coupe

The Mercedes-Benz GLC Coupe offers slightly better fuel economy at 26 combined MPG and utilizes a more engaging 9-speed automatic transmission over the QX55's CVT.

👨‍👩‍👧‍👦 Best for Families

2025 INFINITI QX55

The INFINITI QX55 provides significantly more utility with 26.9 cu ft of cargo space, making it far more practical than the GLC Coupe's 19.2 cu ft.

🏎️ Best for Enthusiasts

2025 INFINITI QX55

The QX55 technically produces more peak horsepower at 268 hp compared to the GLC Coupe's 255 hp, suggesting a slightly stronger top-end performance feel.

💰 Best Value

2025 INFINITI QX55

The QX55 undercuts the GLC Coupe's price by a massive $9,500, offering comparable AWD capability at a much more accessible $50,150 MSRP.

Choose the INFINITI QX55 if...

Budget is a primary concern, given the $50,150 MSRP versus the Mercedes' $59,650.
You prioritize maximum cargo volume, as the QX55 boasts 26.9 cu ft against 19.2 cu ft.
You prefer the marginally higher horsepower rating of 268 hp.

Choose the Mercedes-Benz GLC Coupe if...

You require the best possible fuel economy, achieving 31 highway MPG compared to the QX55's 28 highway MPG.
You prefer the driving engagement provided by a conventional 9-speed shiftable automatic transmission.
You prioritize the greater torque figure of 295 lb-ft for immediate responsiveness off the line.

Key Dimensions

Dimension	INFINITI QX55	Mercedes-Benz GLC Coupe
Length	186.3"	187.6"
Width	74.9"	74.4"
Height	63.8"	63.5"
Wheelbase	110.2"	113.7"

Features Comparison

Safety

Feature	INFINITI	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	✓	✓
Dual Rear 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	✓	✓
Daytime Running Lights	✓	✓
Front Fog Lights	✓	—
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Height Adjustable Headrests	✓	—
Rear Headrests	3	3
Rear Height Adjustable Headrests	✓	✓
Rear Center 3-Point Seatbelt	✓	✓
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Driver Attention Alert	—	✓
Brake Drying	—	✓
Brake Preparation System	—	✓
Adaptive Headlights	—	✓
Front Power Adjustable Headrests	—	✓

Engine

Feature	INFINITI	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	268 hp @ 5600 rpm	255 hp @ 5800 rpm
Torque	280 lb-ft @ 4800 rpm	295 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	INFINITI	Mercedes-Benz
Transmission Type	continuously variable-speed automatic	9-speed shiftable automatic
Drivetrain Type	all wheel drive	all wheel drive
Center Differential Type	Limited Slip	Limited Slip
Hill Descent Control	—	✓

Fuel

Feature	INFINITI	Mercedes-Benz
Fuel Type	premium unleaded (recommended)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	22/28 MPG	23/31 MPG
EPA Fuel Economy (Combined)	25 MPG	26 MPG
EPA Driving Range (City/Highway)	352.0/448.0 mi.	400.2/539.4 mi.
Fuel Tank Capacity	16.0 gal.	17.4 gal.

Comfort & Convenience

Feature	INFINITI	Mercedes-Benz
Push Button Start	✓	✓
Power 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	✓	✓
Rear Parking Sensors	✓	✓
Wireless Charging Pad	✓	✓
Adaptive Cruise Control	✓	—
Universal Remote Transmitter	✓	✓
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Front Seatback Storage	✓	✓
Leather Steering Wheel	✓	✓
Dual Zone Climate Control	✓	✓
Rear Ventilation Ducts	✓	✓
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Turn Signal Indicators in Mirrors	✓	✓
Front View Camera	—	✓
Side View Camera	—	✓
Front Parking Sensors	—	✓
Automatic Parking Assist	—	✓
Cruise Control	—	✓
Overhead Console with Storage	—	✓
Interior Air Filtration	—	✓

In Car Entertainment

Feature	INFINITI	Mercedes-Benz
Infotainment Display	8.0 in	11.9 in
AM/FM Stereo	✓	✓
Speaker System	6	—
Android Auto (Wired)	✓	—
Apple CarPlay (Wired)	✓	—
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	3 months	6 months
Android Auto (Wireless)	—	✓
Apple CarPlay (Wireless)	—	✓
Speed Sensitive Volume Control	—	✓

Power Feature

Feature	INFINITI	Mercedes-Benz
One-Touch Power Windows	4	4
Moonroof Type	1st Row Power Glass	1st Row Power Glass Extended
Keyless Entry	✓	✓
Reverse Tilt Dual Mirrors	✓	—
Heated Mirrors	✓	✓

Frontseats

Feature	INFINITI	Mercedes-Benz
Front Head Room	39.9 in.	38.9 in.
Front Leg Room	39.6 in.	40.8 in.
Front Shoulder Room	57.9 in.	57.3 in.
Front Hip Room	55.6 in.	—
Seat Material: Leather	✓	—
Front Seat Type: Bucket	✓	✓
Driver Seat Power Adjustments	8-way	10-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Driver Seat Memory Settings	2	3
Passenger Seat Power Adjustments	8-way	10-way
Passenger Seat Height Adjustment	✓	✓
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Seat Material: Leatherette	—	✓
Driver Seat Thigh Extension	—	✓
Passenger Seat Lumbar Support	—	Power
Passenger Seat Thigh Extension	—	✓
Passenger Seat Memory Settings	—	3

Rearseats

Feature	INFINITI	Mercedes-Benz
Rear Head Room	36.9 in.	38.3 in.
Rear Leg Room	38.7 in.	37.2 in.
Rear Shoulder Room	57.1 in.	57.3 in.
Rear Hip Room	53.8 in.	—
Split-Folding Rear Seatback	✓	✓
Reclining Rear Seats	✓	✓
Folding Center Armrest	✓	✓

Tires and Wheels

Feature	INFINITI	Mercedes-Benz
Wheel Finish	Painted Alloy	—
Wheel Diameter	20 in.	—
Tire Size	255/45R20	235/55R19
Run Flat Tires	✓	—
Wheel Material	—	Alloy
Wheel Size	—	19 x 8.0 in
Tire Type	—	All Season
Spare Tire Type	—	Temporary
Spare Tire Location	—	Inside Mounted

Suspension

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

Warranty

Feature	INFINITI	Mercedes-Benz
Basic Warranty	4 yr./ 60000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	6 yr./ 70000 mi.	4 yr./ 50000 mi.
Corrosion/Rust Warranty	7 yr./ unlimited mi.	4 yr./ 50000 mi.
Roadside Assistance	4 yr./ 60000 mi.	4 yr./ 50000 mi.
Complimentary Scheduled Maintenance	3 yr./ 22500 mi.	—
Hybrid Component Warranty	—	6 yr./ 62000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 INFINITI QX55 and 2026 Mercedes-Benz GLC Coupe.

How significant is the difference in power output between the two coupe crossovers?

The 2025 INFINITI QX55 leads in peak horsepower, delivering 268 hp. However, the 2026 Mercedes-Benz GLC Coupe counters this with superior torque, generating 295 lb-ft versus the QX55's 280 lb-ft.

Is the major price gap justified by better efficiency in the GLC Coupe?

The Mercedes carries a $9,500 higher MSRP, but rewards owners with slightly better efficiency, delivering 26 combined MPG compared to the QX55's 25 combined MPG.

Which vehicle offers more practicality for hauling luggage?

The INFINITI QX55 is the clear winner for cargo capacity, offering a cavernous 26.9 cu ft behind the rear seats. The GLC Coupe sacrifices space for style, providing only 19.2 cu ft.

Do both vehicles use the same type of transmission?

No, the vehicles use distinct technologies; the QX55 employs a continuously variable-speed automatic (CVT), whereas the GLC Coupe features a more traditional 9-speed shiftable automatic.

Are premium fuels required for both the QX55 and GLC Coupe?

Yes, both premium unleaded engines demand higher octane fuel. However, the QX55 recommends it, while the GLC Coupe explicitly requires it for optimal operation.

How do their overall dimensions compare, given they are both coupe-style crossovers?

The two vehicles are nearly identical in footprint, with the QX55 being slightly shorter in length at 186.3 inches versus 187.6 inches, though the QX55 is slightly wider.