2025 Audi RS 6 vs 2025 INFINITI QX80

$126,600 · Wagon

$82,450 · SUV

Comparison Overview

When facing the choice between exhilarating performance in a practical package versus sheer size and presence, the 2025 Audi RS 6 and the 2025 INFINITI QX80 present a classic automotive dilemma. The RS 6, a performance wagon priced at $126,600, delivers a massive 621 hp and 627 lb-ft of torque, sacrificing fuel economy for speed, netting only 17 MPG combined. Conversely, the QX80 SUV starts significantly lower at $82,450, offering a respectable 450 hp and slightly better fuel efficiency at 18 MPG combined, despite its much larger dimensions (211.2 inches long vs. the RS 6's 196.7 inches). While the Audi boasts AWD and significantly more power, the INFINITI provides a commanding height of 76.6 inches and a more palatable price point, appealing to buyers prioritizing stature over raw acceleration metrics.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Audi RS 6

Despite lower MPG, the RS 6's superior handling and smaller footprint make weaving through city traffic easier than piloting the large QX80.

👨‍👩‍👧‍👦 Best for Families

2025 INFINITI QX80

The QX80's substantially larger overall size and imposing 76.6-inch height suggest greater passenger comfort and presence for family hauling.

🏎️ Best for Enthusiasts

2025 Audi RS 6

The Audi RS 6 offers a thrilling 621 hp and 627 lb-ft of torque, vastly overshadowing the QX80's output.

💰 Best Value

2025 INFINITI QX80

The QX80 saves buyers $44,150 upfront while only delivering a modest 1 MPG penalty over the significantly more expensive RS 6.

Choose the Audi RS 6 if...

You demand extreme performance, benefiting from the 621 hp available in the wagon body style.
You prefer the versatility of 30 cu ft of cargo space combined with Audi's all-wheel-drive system.
Your budget comfortably accommodates the $126,600 MSRP and the requirement for premium fuel.

Choose the INFINITI QX80 if...

Saving $44,150 compared to Car 1 is a major priority in your purchasing decision.
You need maximum road presence, evidenced by the QX80's 83.3-inch width and 76.6-inch height.
You want a slightly better combined fuel economy rating of 18 MPG, even if premium fuel is only recommended.

Key Dimensions

Dimension	Audi RS 6	INFINITI QX80
Length	196.7"	211.2"
Width	76.8"	83.3"
Height	58.6"	76.6"
Wheelbase	115.3"	121.0"

Features Comparison

Safety

Feature	Audi	INFINITI
Lane Departure Warning	✓	✓
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	✓	✓
Headlight Washers	✓	—
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	✓	✓
Blind Spot Monitor	—	✓
Lane Keeping Assist System	—	✓
Rear Cross Traffic Alert	—	✓
Driver Attention Alert	—	✓
Third Row Head Airbags	—	✓
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	621 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]	✓	—

Fuel

Feature	Audi	INFINITI
Fuel Type	premium unleaded (required)	premium unleaded (recommended)
EPA Fuel Economy (City/Highway)	14/21 MPG	16/20 MPG
EPA Fuel Economy (Combined)	17 MPG	18 MPG
EPA Driving Range (City/Highway)	270.2/405.3 mi.	377.6/472.0 mi.
Fuel Tank Capacity	19.3 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	✓	✓
Wireless Charging Pad	✓	✓
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	—	✓
Adaptive Cruise Control	—	✓
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	—
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	—	✓
Stereo Power	—	600W
Speaker System	—	14
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	38.3 in.	39.1 in.
Front Leg Room	41.3 in.	43.8 in.
Front Shoulder Room	57.8 in.	64.2 in.
Seat Material: Premium Leather	✓	—
Front Seat Type: Sport	✓	—
Driver Seat Power Adjustments	10-way	8-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Driver Seat Memory Settings	2	2
Passenger Seat Power Adjustments	10-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
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	39.5 in.	37.8 in.
Rear Leg Room	37.4 in.	39.2 in.
Rear Shoulder Room	56.5 in.	63.7 in.
Split-Folding Rear Seatback	✓	—
Folding Rear Seat Feature	✓	—
Pass-Thru Center Armrest	✓	—
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	—	✓

Tires and Wheels

Feature	Audi	INFINITI
Wheel Material	Alloy	Alloy
Wheel Size	21 in	20 x 8.0 in
Tire Type	Performance	All Season
Tire Size	275/35R21	275/60R20
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 6 and 2025 INFINITI QX80.

How much more power does the Audi RS 6 have than the INFINITI QX80?

The 2025 Audi RS 6 produces 621 hp, giving it a substantial 171 hp advantage over the QX80's 450 hp output. This massive power difference should translate into significantly quicker acceleration times for the wagon.

Which vehicle is better for long road trips regarding efficiency?

The QX80 edges out the RS 6 slightly in efficiency, rated at 18 MPG combined versus the Audi's 17 MPG combined. Furthermore, the Audi strictly requires premium fuel, whereas premium is only recommended for the QX80.

Is the QX80 significantly larger than the RS 6?

Yes, the QX80 is physically larger in every dimension; it is 14.5 inches longer (211.2 inches vs 196.7 inches) and notably taller at 76.6 inches compared to the RS 6's 58.6 inches.

Does the Audi RS 6 or the QX80 offer more cargo room?

Surprisingly, the lower-riding RS 6 wagon offers more utility with 30 cubic feet of cargo capacity behind the rear seats. The larger-looking QX80 SUV has a measured capacity of 22 cubic feet.

What is the price difference between these two premium vehicles?

The MSRP difference is quite significant; the 2025 Audi RS 6 starts at $126,600, while the 2025 INFINITI QX80 has a lower entry price of $82,450, resulting in a $44,150 gap.

Which vehicle is better suited for performance driving based on the specs?

The RS 6 is built for performance, evidenced by its 627 lb-ft of torque and standard all-wheel drive paired with an 8-speed automatic. The QX80 uses an RWD base setup, prioritizing ride height over track-ready dynamics.