2025 INFINITI QX55 vs 2025 Lexus GX

$50,150 · Crossover

$64,735 · SUV

Comparison Overview

Deciding between stylish flair and rugged capability is a classic choice, especially when comparing the 2025 INFINITI QX55 and the 2025 Lexus GX. Buyers looking for better efficiency and a lower entry point will lean toward the QX55, which starts at $50,150 and delivers a solid 25 combined MPG. Conversely, those prioritizing raw performance and traditional SUV structure must accept the GX's $64,735 MSRP and its lower 17 combined MPG rating. The Lexus boasts significantly more muscle, offering 349 hp and 479 lb-ft of torque compared to the QX55's 268 hp and 280 lb-ft. However, this power comes at the cost of size; the QX55 is nearly 11 inches shorter in length, making the INFINITI more city-friendly. The real dilemma boils down to valuing daily fuel savings and maneuverability over the GX's significant power advantage and traditional SUV build.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 INFINITI QX55

The QX55 is the clear winner for daily commuting due to its superior 25 combined MPG versus the GX's 17 MPG.

👨‍👩‍👧‍👦 Best for Families

2025 Lexus GX

The larger Lexus GX, with its increased height of 75.6 inches, offers a more traditionally spacious and robust environment for families.

🏎️ Best for Enthusiasts

2025 Lexus GX

Enthusiasts will prefer the Lexus GX for its substantial power advantage, delivering 349 hp and 479 lb-ft of torque.

💰 Best Value

2025 INFINITI QX55

The QX55 offers better value by starting $14,585 less than the GX while still providing AWD capability.

Choose the INFINITI QX55 if...

You prioritize maximizing fuel economy, as the QX55 achieves 25 combined MPG.
Your budget is firm, needing to stay close to the $50,150 starting MSRP.
You prefer a slightly smaller footprint; the QX55 is 186.3 inches long, aiding in city parking.

Choose the Lexus GX if...

You need maximum torque for towing or heavy-duty use, as the GX outputs 479 lb-ft.
You require a traditional SUV design with greater dimensions, such as its 75.6-inch height.
You desire smoother acceleration with a 10-speed automatic transmission over a CVT.

Key Dimensions

Dimension	INFINITI QX55	Lexus GX
Length	186.3"	197.1"
Width	74.9"	78.0"
Height	63.8"	75.6"
Wheelbase	110.2"	112.2"

Features Comparison

Safety

Feature	INFINITI	Lexus
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	✓	✓
Third Row Head Airbags	—	✓
Self-Leveling Headlights	—	✓

Engine

Feature	INFINITI	Lexus
Base Engine Displacement	2.0 L	3.4 L
Number of Cylinders	inline 4	V6
Base Engine Type	gas	gas
Horsepower	268 hp @ 5600 rpm	349 hp @ 4800 rpm
Torque	280 lb-ft @ 4800 rpm	479 lb-ft @ 2000 rpm
Number of Valves	16	24
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓

Drive Train

Feature	INFINITI	Lexus
Transmission Type	continuously variable-speed automatic	10-speed shiftable automatic
Drivetrain Type	all wheel drive	four wheel drive
Center Differential Type	Limited Slip	Limited Slip
4WD System Type	—	Full Time
Transfer Case Gearing	—	Manual Hi-Lo

Fuel

Feature	INFINITI	Lexus
Fuel Type	premium unleaded (recommended)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	22/28 MPG	15/21 MPG
EPA Fuel Economy (Combined)	25 MPG	17 MPG
EPA Driving Range (City/Highway)	352.0/448.0 mi.	316.5/443.1 mi.
Fuel Tank Capacity	16.0 gal.	21.1 gal.

Comfort & Convenience

Feature	INFINITI	Lexus
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	✓	✓
Tilt and Telescopic Steering Wheel	—	✓
Front Parking Sensors	—	✓
3rd Row Cupholders	—	✓
Interior Air Filtration	—	✓

In Car Entertainment

Feature	INFINITI	Lexus
Infotainment Display	8.0 in	14.0 in
AM/FM Stereo	✓	✓
Speaker System	6	10
Android Auto (Wired)	✓	—
Apple CarPlay (Wired)	✓	—
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	—
Satellite Radio Trial Period	3 months	—
Android Auto (Wireless)	—	✓
Apple CarPlay (Wireless)	—	✓
Speed Sensitive Volume Control	—	✓

Power Feature

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

Frontseats

Feature	INFINITI	Lexus
Front Head Room	39.9 in.	39.4 in.
Front Leg Room	39.6 in.	41.2 in.
Front Shoulder Room	57.9 in.	59.5 in.
Front Hip Room	55.6 in.	56.5 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
Driver Seat Memory Settings	2	—
Passenger Seat Power Adjustments	8-way	8-way
Passenger Seat Height Adjustment	✓	✓
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Seat Material: Leatherette	—	✓
Passenger Seat Lumbar Support	—	Power
Driver Seat Ventilation	—	✓
Passenger Seat Ventilation	—	✓

Rearseats

Feature	INFINITI	Lexus
Rear Head Room	36.9 in.	43.2 in.
Rear Leg Room	38.7 in.	36.7 in.
Rear Shoulder Room	57.1 in.	57.2 in.
Rear Hip Room	53.8 in.	56.4 in.
Split-Folding Rear Seatback	✓	✓
Reclining Rear Seats	✓	✓
Folding Center Armrest	✓	✓
Manual Folding Third Row Seat	—	✓

Tires and Wheels

Feature	INFINITI	Lexus
Wheel Finish	Painted Alloy	Painted Alloy
Wheel Diameter	20 in.	—
Tire Size	255/45R20	✓
Run Flat Tires	✓	—
Wheel Dimensions	—	20 x 7.5 in
Tire Type	—	All Season
Spare Tire Type	—	Full Size Matching
Spare Tire Location	—	Underbody Mounted

Suspension

Feature	INFINITI	Lexus
Four-Wheel Independent Suspension	✓	—
Front Stabilizer Bar	✓	✓
Rear Stabilizer Bar	✓	✓
Front Suspension Type	—	Independent

Warranty

Feature	INFINITI	Lexus
Basic Warranty	4 yr./ 60000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	6 yr./ 70000 mi.	6 yr./ 70000 mi.
Corrosion/Rust Warranty	7 yr./ unlimited mi.	6 yr./ unlimited mi.
Roadside Assistance	4 yr./ 60000 mi.	4 yr./ unlimited mi.
Complimentary Scheduled Maintenance	3 yr./ 22500 mi.	1 yr./ 10000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 INFINITI QX55 and 2025 Lexus GX.

How does the fuel cost difference between the QX55 and the GX look over a year?

The difference is substantial; the QX55 achieves 25 combined MPG, while the Lexus GX only manages 17 combined MPG, translating to significantly more trips to the pump for the GX owner.

Is the Lexus GX’s extra power worth the higher price tag?

The GX provides 81 more horsepower (349 hp vs. 268 hp) and substantially more torque (479 lb-ft vs. 280 lb-ft), which enthusiasts will notice immediately, but it costs $14,585 more upfront.

Which vehicle is easier to handle in tight urban settings?

The 2025 INFINITI QX55 is physically smaller, measuring 186.3 inches long compared to the GX’s 197.1 inches, likely making it nimbler for parking and tight streets.

Does the QX55's lower cargo space impact road trips?

Yes, the QX55 has 26.9 cubic feet of cargo capacity, whereas the GX offers only 10.3 cubic feet in its base configuration, meaning the GX might fit fewer large items if it's primarily used as a cargo hauler.

Both recommend premium fuel; is the GX's requirement stricter?

Yes, the QX55 recommends premium unleaded, but the GX mandates premium unleaded fuel, which can affect owner flexibility if premium is unavailable.

How does the transmission choice affect driving dynamics?

The QX55 uses a continuously variable-speed automatic (CVT), known for smoothness, while the GX employs a more traditional and responsive 10-speed shiftable automatic, often preferred for spirited driving.