2025 Audi RS Q8 vs 2025 INFINITI QX80

$136,200 · Crossover

$82,450 · SUV

Comparison Overview

The 2025 Audi RS Q8 bursts onto the scene as an absolute performance behemoth, boasting a ferocious 631 hp and 627 lb-ft of torque, thrilling drivers despite its relatively tight 14/20 MPG city/highway rating. Contrasting this speed machine is the commanding 2025 INFINITI QX80, which leans into sheer presence with its imposing 211.2-inch length and strong 450 hp output, offering a different kind of luxury SUV experience. The core conflict lies in the $53,750 price gap separating the two; the Audi commands its premium with sheer speed, while the INFINITI provides significant size and decent 18 MPG combined efficiency for thousands less. While the RS Q8 crushes the QX80 in power by 181 hp, the INFINITI's RWD setup and larger frame present a more traditional, though less potent, large SUV proposition, making buyer priorities center around ultimate velocity versus outright presence and budget.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 INFINITI QX80

The QX80 is likely more manageable in city driving with a slightly better combined MPG of 18 versus the RS Q8's 16 MPG.

👨‍👩‍👧‍👦 Best for Families

2025 INFINITI QX80

The QX80 offers substantially more physical presence, being taller at 76.6 inches and longer at 211.2 inches, suggesting more interior comfort.

🏎️ Best for Enthusiasts

2025 Audi RS Q8

The Audi RS Q8 dominates performance metrics with 631 hp and 627 lb-ft of torque, making it the significantly faster machine.

💰 Best Value

2025 INFINITI QX80

The QX80 is priced $53,750 lower while still delivering 450 hp, offering immense capability without the supercar premium.

Choose the Audi RS Q8 if...

Ultimate acceleration and power figures, specifically achieving 631 hp, are your top priority.
You require the stability and grip provided by the standard all-wheel drive system.
You prefer a more compact footprint for a performance crossover (197.7 inches long) over the massive QX80.

Choose the INFINITI QX80 if...

You need to maximize cargo space while respecting a budget, given its significant price advantage over the RS Q8.
Rear-wheel drive dynamics are preferred for your standard driving experience.
You want a physically imposing presence, evidenced by its 79.0 inches wider body and 76.6 inches height.

Key Dimensions

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

Features Comparison

Safety

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

Engine

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

Drive Train

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

Fuel

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

Comfort & Convenience

Feature	Audi	INFINITI
Push Button Start	✓	✓
Power Tilt and Telescopic Steering Wheel	✓	✓
Transmission Controls on Steering Wheel	✓	—
Audio Controls on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Front View Camera	✓	✓
Side View Camera	✓	✓
Rear View Camera	✓	✓
Front Parking Sensors	✓	✓
Rear Parking Sensors with Side Sensing	✓	—
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	✓	✓
Heated Steering Wheel	✓	✓
Four Zone Climate Control	✓	—
Rear Ventilation Ducts with Fan Control	✓	✓
Interior Air Filtration	✓	✓
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Turn Signal Indicators in Mirrors	✓	✓
Cruise Control on Steering Wheel	—	✓
Rear Parking Sensors	—	✓
3rd Row Cupholders	—	✓
Overhead Console with Storage	—	✓
Manual Rear Seat Easy Entry	—	✓
Three Zone Climate Control	—	✓

In Car Entertainment

Feature	Audi	INFINITI
Infotainment Display	10.1 in	14.3 in
AM/FM Stereo	✓	✓
Premium Brand Speakers	Bang & Olufsen	—
Stereo Power	730W	600W
Speaker System	17	14
Surround Audio	Discrete	—
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
Klipsch Speakers	—	✓
Subwoofer Count	—	1
Speed Sensitive Volume Control	—	✓

Power Feature

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

Frontseats

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

Rearseats

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

Tires and Wheels

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

Suspension

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

Warranty

Feature	Audi	INFINITI
Basic Warranty	4 yr./ 50000 mi.	4 yr./ 60000 mi.
Drivetrain Warranty	4 yr./ 50000 mi.	6 yr./ 70000 mi.
Corrosion/Rust Warranty	12 yr./ unlimited mi.	7 yr./ unlimited mi.
Roadside Assistance	4 yr./ unlimited mi.	4 yr./ 60000 mi.
Complimentary Scheduled Maintenance	—	3 yr./ 45000 mi.

Frequently Asked Questions

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

What is the real-world performance difference between the 2025 Audi RS Q8 and the 2025 INFINITI QX80?

The performance disparity is massive; the Audi RS Q8 produces an astonishing 631 hp, dwarfing the QX80's 450 hp by 181 horsepower. This translates directly into superior acceleration capabilities for the Audi, making it the choice for track days or high-speed driving.

How does the fuel economy compare given the power difference?

The more powerful RS Q8 is thirstier, achieving a combined 16 MPG (14 city/20 highway) and strictly requiring premium fuel. The QX80 is marginally more efficient at a combined 18 MPG (16 city/20 highway) and only recommends premium fuel.

Is the $53,750 price difference justified by the Audi’s performance?

Objectively, the Audi's MSRP of $136,200 targets an entirely different buyer than the QX80's $82,450 starting price. The Audi trades value for hyper-performance metrics like 627 lb-ft of torque.

Which vehicle offers superior utility and space for hauling cargo?

While both are large vehicles, the QX80 is physically much larger in every dimension, yet surprisingly, the Audi RS Q8 claims a higher listed cargo capacity at 33 cubic feet compared to the QX80's 22 cubic feet.

Which model is better suited for towing or traditional large SUV functionality?

The QX80's inherent SUV structure, larger dimensions (211.2 inches long), and rear-wheel drive base are typically indicative of better towing capability, although specific tow ratings are not listed here.

Do both vehicles use a similar transmission system?

Both utilize shiftable automatic transmissions, but the Audi RS Q8 is equipped with an 8-speed unit, whereas the QX80 employs a slightly different 9-speed unit.