2025 INFINITI QX80 vs 2026 Audi RS 6
Comparison Overview
The 2025 INFINITI QX80 arrives as a majestic, imposing full-size SUV, immediately distinct with its commanding 211.2 inches of length and a robust 450 horsepower from its new V6 engine. In stark contrast, the 2026 Audi RS 6 unleashes pure, sculpted performance as a wagon, boasting a staggering 621 horsepower and 627 lb-ft of torque, making it a literal speed missile. While the QX80 offers a more accessible entry point at an MSRP of $82,450, the RS 6 demands a premium of $130,700. This power gulf is massive: the Audi possesses 171 more horsepower than the INFINITI. Despite its bulk, the QX80 manages a respectable 16/20 MPG, which is surprisingly close to the smaller Audi’s 14/21 MPG ratings, though both demand premium fuel.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2025 INFINITI QX80
The QX80, despite its size, is positioned for comfort and easier urban maneuverability than the potent, low-slung RS 6.
2025 INFINITI QX80
The QX80 offers the traditional commanding height and familiar SUV format preferred by many families, despite having less cargo space at 22 cu ft.
2026 Audi RS 6
With 621 hp and 627 lb-ft of torque delivered via Audi's acclaimed AWD system, the RS 6 provides unmatched raw performance.
2025 INFINITI QX80
The QX80 is significantly less expensive, saving buyers $48,250 compared to the RS 6 while still offering substantial luxury and 450 horsepower.
Choose the INFINITI QX80 if...
- You prioritize a commanding driving position and desire an MSRP under $83,000.
- You need the sheer physical presence of a full-size SUV (211.2 inches long).
- You prefer RWD architecture paired with a 9-speed automatic transmission for a traditional SUV feel.
Choose the Audi RS 6 if...
- Maximum acceleration is critical, as evidenced by the 171 hp advantage (621 hp total).
- You prefer the versatile cargo configuration of a high-performance wagon, offering 29.9 cu ft.
- You require standard All-Wheel Drive and demand the highest torque figure of 627 lb-ft.
Key Dimensions
| Dimension | INFINITI QX80 | Audi RS 6 |
|---|---|---|
| Length | 211.2" | 196.7" |
| Width | 83.3" | 76.8" |
| Height | 76.6" | 58.6" |
| Wheelbase | 121.0" | 115.3" |
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 | — | ✓ |
| Headlight Washers | — | ✓ |
| Front Integrated Headrests | — | ✓ |
| Rear Fixed 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 | 621 hp |
| Torque | 516 lb-ft @ 3600 rpm | 627 lb-ft |
| 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 | 14/21 MPG |
| EPA Fuel Economy (Combined) | 18 MPG | 16 MPG |
| EPA Driving Range (City/Highway) | 377.6/472.0 mi. | 270.2/405.3 mi. |
| Fuel Tank Capacity | 23.6 gal. | 19.3 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 | — | ✓ |
| Cruise Control | — | ✓ |
| 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 | — |
| Speaker System | 14 | — |
| Subwoofer Count | 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. | 38.3 in. |
| Front Leg Room | 43.8 in. | 41.3 in. |
| Front Shoulder Room | 64.2 in. | 57.8 in. |
| Front Hip Room | 59.9 in. | — |
| Seat Material: Leatherette | ✓ | — |
| 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 | 2 |
| Passenger Seat Power Adjustments | 8-way | 10-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 | — | ✓ |
| Driver Seat Ventilation | — | ✓ |
| Passenger Seat Ventilation | — | ✓ |
Rearseats
| Feature | INFINITI | Audi |
|---|---|---|
| Rear Head Room | 37.8 in. | 39.5 in. |
| Rear Leg Room | 39.2 in. | 37.4 in. |
| Rear Shoulder Room | 63.7 in. | 56.5 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 Rear Seat Feature | — | ✓ |
| Pass-Thru Center Armrest | — | ✓ |
Tires and Wheels
| Feature | INFINITI | Audi |
|---|---|---|
| Wheel Material | Alloy | Alloy |
| Wheel Size | 20 x 8.0 in | 21 in |
| Tire Type | All Season | Performance |
| Tire Size | 275/60R20 | 275/35R21 |
| Spare Tire Type | Full Size Non-Matching | — |
| Spare Tire Location | Underbody Mounted | — |
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 6.
How do the fuel economy figures compare between these two premium vehicles?
The 2025 QX80 achieves an 18 MPG combined rating (16 city/20 highway), while the performance-focused 2026 RS 6 returns a slightly lower 16 MPG combined (14 city/21 highway). Both require the more expensive premium unleaded fuel.
Is the size difference significant enough to impact parking or maneuvering?
Yes, the QX80 is substantially longer at 211.2 inches compared to the RS 6's 196.7 inches, and it is also taller at 76.6 inches versus the Audi's 58.6 inches, making the QX80 feel much bulkier in tight spaces.
What is the primary reason for the $48,250 price gap between the QX80 and the RS 6?
The price difference is largely dictated by the massive performance disparity; the RS 6 offers 621 horsepower and AWD performance engineering that positions it significantly higher than the QX80's 450 horsepower RWD setup.
Which vehicle offers more practical storage volume?
Despite being a larger SUV, the 2025 QX80 lists 22 cu ft of cargo capacity. The sleeker 2026 Audi RS 6 wagon surpasses this utility with 29.9 cu ft of space.
Is the performance difference immediately noticeable between 450 hp and 621 hp?
Absolutely, the 171 horsepower deficit in the QX80 compared to the RS 6 is substantial, meaning the Audi will offer markedly superior acceleration, especially considering the RS 6's superior 627 lb-ft of torque.
Do both vehicles use the same type of fuel?
Both vehicles specify premium unleaded fuel; however, the QX80 recommends it while the Audi RS 6 mandates it for its high-output engine.
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