2025 INFINITI QX80 vs 2026 Audi RS Q8

$82,450 · SUV

$138,300 · Crossover

Comparison Overview

The most significant numerical divergence between the 2025 INFINITI QX80 and the 2026 Audi RS Q8 is the Manufacturer's Suggested Retail Price (MSRP), with the Audi demanding an additional $55,850, starting at $138,300 versus the QX80's $82,450. Performance metrics also show a substantial gap, as the RS Q8 delivers 631 hp and 627 lb-ft of torque, significantly outpacing the QX80's 450 hp and 516 lb-ft. However, the QX80 holds an advantage in efficiency, achieving a combined 18 MPG compared to the RS Q8's 16 MPG. Dimensionally, the QX80 is larger overall, measuring 211.2 inches in length, while the RS Q8 compensates with superior utility, boasting 33 cu ft of cargo capacity against the QX80's 22 cu ft, despite the QX80’s larger exterior footprint.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 INFINITI QX80

The INFINITI QX80 is marginally more fuel-efficient with a combined 18 MPG versus the RS Q8's 16 MPG.

👨‍👩‍👧‍👦 Best for Families

2026 Audi RS Q8

The 2026 Audi RS Q8 offers 33 cu ft of cargo capacity, substantially larger than the QX80's 22 cu ft.

🏎️ Best for Enthusiasts

2026 Audi RS Q8

The Audi RS Q8 decisively leads in performance, producing 631 hp and 627 lb-ft of torque.

💰 Best Value

2025 INFINITI QX80

The QX80 provides 450 hp for its $82,450 MSRP, presenting a significantly better cost-per-horsepower ratio than the costlier Audi.

Choose the INFINITI QX80 if...

Budget constraints necessitate an MSRP under $85,000, as the QX80 starts at $82,450.
Maximizing fuel range is important, given its 18 MPG combined rating versus the RS Q8's 16 MPG.
A traditional, large-SUV stance with significant exterior dimensions (211.2 inches long) is preferred.

Choose the Audi RS Q8 if...

Maximum straight-line performance is the priority, utilizing the 631 hp engine.
Maximum utility is required, taking advantage of the superior 33 cu ft of cargo space.
The added security and traction of an all-wheel-drive system are necessary for driving dynamics.

Key Dimensions

Dimension	INFINITI QX80	Audi RS Q8
Length	211.2"	197.7"
Width	83.3"	79.0"
Height	76.6"	67.5"
Wheelbase	121.0"	117.9"

Features Comparison

Safety

Feature	INFINITI	Audi
Blind Spot Monitor	✓	✓
Lane Departure Warning	✓	✓
Lane Keeping Assist System	✓	✓
Rear Cross Traffic Alert	✓	✓
Driver Attention 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	✓	✓
Front Fog Lights	✓	—
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Height Adjustable Headrests	✓	—
Rear Headrests	2	3
Rear Height Adjustable Headrests	✓	✓
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Dual Rear Side-Mounted Airbags	—	✓
Front Integrated Headrests	—	✓
Rear Center 3-Point Seatbelt	—	✓

Engine

Feature	INFINITI	Audi
Base Engine Displacement	3.5 L	4.0 L
Number of Cylinders	V6	V8
Base Engine Type	gas	mild hybrid
Horsepower	450 hp @ 5600 rpm	631 hp @ 6000 rpm
Torque	516 lb-ft @ 3600 rpm	627 lb-ft @ 2300 rpm
Number of Valves	24	32
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓

Drive Train

Feature	INFINITI	Audi
Transmission Type	9-speed shiftable automatic	8-speed shiftable automatic
Drivetrain Type	rear wheel drive	all wheel drive
[object Object]	—	✓
[object Object]	—	✓
Hill Descent Control	—	✓

Fuel

Feature	INFINITI	Audi
Fuel Type	premium unleaded (recommended)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	16/20 MPG	14/20 MPG
EPA Fuel Economy (Combined)	18 MPG	16 MPG
EPA Driving Range (City/Highway)	377.6/472.0 mi.	315.0/450.0 mi.
Fuel Tank Capacity	23.6 gal.	22.5 gal.

Comfort & Convenience

Feature	INFINITI	Audi
Push Button Start	✓	✓
Power 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	✓	✓
Front Parking Sensors	✓	✓
Rear Parking Sensors	✓	—
Wireless Charging Pad	✓	✓
Adaptive Cruise Control	✓	✓
Universal Remote Transmitter	✓	✓
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
3rd Row Cupholders	✓	—
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Overhead Console with Storage	✓	—
Front Seatback Storage	✓	✓
Manual Rear Seat Easy Entry	✓	—
Leather Steering Wheel	✓	✓
Heated Steering Wheel	✓	✓
Three Zone Climate Control	✓	—
Rear Ventilation Ducts with Fan Control	✓	✓
Interior Air Filtration	✓	✓
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Turn Signal Indicators in Mirrors	✓	✓
Transmission Controls on Steering Wheel	—	✓
Rear Parking Sensors with Side Sensing	—	✓
Four Zone Climate Control	—	✓

In Car Entertainment

Feature	INFINITI	Audi
Infotainment Display	14.3 in	10.1 in
AM/FM Stereo	✓	✓
Klipsch Speakers	✓	—
Stereo Power	600W	730W
Speaker System	14	17
Subwoofer Count	1	1
Android Auto (Wireless)	✓	✓
Apple CarPlay (Wireless)	✓	✓
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	With Real Time Traffic	✓
Satellite Radio Trial Period	3 months	3 months
Speed Sensitive Volume Control	✓	—
Premium Brand Speakers	—	Bang & Olufsen
Surround Audio	—	Discrete

Power Feature

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

Frontseats

Feature	INFINITI	Audi
Front Head Room	39.1 in.	37.1 in.
Front Leg Room	43.8 in.	41.3 in.
Front Shoulder Room	64.2 in.	59.5 in.
Front Hip Room	59.9 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
Driver Seat Memory Settings	2	2
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: Premium Leather	—	✓
Front Seat Type: Sport	—	✓
Passenger Seat Memory Settings	—	2
Driver Seat Ventilation	—	✓
Passenger Seat Ventilation	—	✓

Rearseats

Feature	INFINITI	Audi
Rear Head Room	37.8 in.	38.1 in.
Rear Leg Room	39.2 in.	40.2 in.
Rear Shoulder Room	63.7 in.	58.4 in.
Rear Hip Room	59.9 in.	—
Folding Rear Seatback	✓	—
Reclining Rear Seats	✓	✓
Fixed Center Armrest	✓	—
Heated Rear Seats (Multi-Level)	✓	—
Power Folding Third Row Seat	✓	—
Split-Folding Rear Seatback	—	✓
Folding Center Armrest	—	✓

Tires and Wheels

Feature	INFINITI	Audi
Wheel Material	Alloy	Alloy
Wheel Size	20 x 8.0 in	—
Tire Type	All Season	Performance
Tire Size	275/60R20	295/40R22
Spare Tire Type	Full Size Non-Matching	—
Spare Tire Location	Underbody Mounted	—
Wheel Diameter	—	22 in

Suspension

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

Warranty

Feature	INFINITI	Audi
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.	12 yr./ unlimited mi.
Roadside Assistance	4 yr./ 60000 mi.	4 yr./ unlimited mi.
Complimentary Scheduled Maintenance	3 yr./ 45000 mi.	3 yr./ 30000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 INFINITI QX80 and 2026 Audi RS Q8.

What is the primary performance difference between the 2025 QX80 and the 2026 RS Q8?

The 2026 Audi RS Q8 is substantially more powerful, generating 631 hp and 627 lb-ft of torque. The 2025 INFINITI QX80 produces 450 hp and 516 lb-ft of torque, indicating the Audi is optimized for high performance.

How does the price disparity affect the value proposition of these two vehicles?

The Audi RS Q8 carries an MSRP of $138,300, creating a $55,850 gulf compared to the QX80's $82,450 entry point. This makes the QX80 the significantly better value for buyers prioritizing lower initial expenditure over top-tier power output.

Which vehicle is better suited for long road trips regarding fuel?

The INFINITI QX80 achieves 18 MPG combined on recommended premium fuel, slightly edging out the Audi RS Q8's 16 MPG combined rating. However, both vehicles mandate premium fuel usage.

Which SUV configuration is better for hauling cargo?

The 2026 Audi RS Q8 offers 33 cubic feet of cargo capacity, substantially more usable space than the 22 cu ft available in the 2025 INFINITI QX80.

Are there any drivetrain differences that impact driving style?

Yes, the standard configuration for the QX80 is rear-wheel drive, whereas the RS Q8 features standard all-wheel drive. Additionally, the QX80 uses a 9-speed automatic transmission, while the RS Q8 utilizes an 8-speed automatic.

Is the QX80 a physically larger vehicle than the RS Q8?

Yes, the INFINITI QX80 is larger in overall footprint, measuring 211.2 inches in length and 83.3 inches in width. The Audi RS Q8 is more compact at 197.7 inches long and 79.0 inches wide, contributing to its crossover classification.