2025 INFINITI QX55 vs 2026 Audi Q8
Comparison Overview
The 2025 INFINITI QX55 immediately captures attention with its daring coupe-like silhouette, offering accessible luxury powered by 268 horsepower and achieving a respectable 25 MPG combined. Conversely, the 2026 Audi Q8 blasts onto the scene as the undisputed powerhouse, delivering a commanding 335 horsepower and 369 lb-ft of torque, though this performance nudges combined fuel economy down to just 19 MPG. The disparity is massive across the board: the Audi measures nearly 10 inches longer at 196.0 inches versus the QX55's 186.3 inches, translating to 33.7 cubic feet of superior cargo space compared to the QX55's 26.9 cu ft. Furthermore, the $25,450 MSRP gap highlights the core conflict: daily efficiency and affordability versus brute force and premium presence in a tighter, more agile package.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2025 INFINITI QX55
The QX55 wins for commuters by offering 6 more miles per gallon combined (25 MPG vs. 19 MPG), leading to lower running costs.
2026 Audi Q8
The larger Audi Q8 provides significantly more utility with 33.7 cubic feet of cargo capacity compared to the QX55's 26.9 cu ft.
2026 Audi Q8
The Q8 is the clear choice for driving thrills due to its potent 335 hp and substantial 369 lb-ft of torque, easily outpacing the QX55's output.
2025 INFINITI QX55
The QX55 presents superior value, costing $25,450 less than the Q8 while still offering a luxury AWD crossover experience.
Choose the INFINITI QX55 if...
- You prioritize fuel economy and can benefit from 25 MPG combined versus the Q8's 19 MPG.
- Your budget is firmly under $60,000, as the QX55 starts at $50,150.
- You prefer the lighter footprint and slightly less cumbersome dimensions (186.3 inches long) for urban driving.
Choose the Audi Q8 if...
- Performance is paramount, requiring the significant power advantage of 335 horsepower.
- You need maximum hauling capability, benefiting from 33.7 cu ft of cargo space.
- You desire the superior torque delivery of 369 lb-ft, paired with a traditional 8-speed automatic transmission.
Key Dimensions
| Dimension | INFINITI QX55 | Audi Q8 |
|---|---|---|
| Length | 186.3" | 196.0" |
| Width | 74.9" | 79.0" |
| Height | 63.8" | 67.0" |
| Wheelbase | 110.2" | 118.0" |
Features Comparison
Safety
| Feature | INFINITI | Audi |
|---|---|---|
| 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 | ✓ | ✓ |
| Headlight Washers | — | ✓ |
Engine
| Feature | INFINITI | Audi |
|---|---|---|
| Base Engine Displacement | 2.0 L | 3.0 L |
| Number of Cylinders | inline 4 | V6 |
| Base Engine Type | gas | mild hybrid |
| Horsepower | 268 hp @ 5600 rpm | 335 hp @ 6400 rpm |
| Torque | 280 lb-ft @ 4800 rpm | 369 lb-ft @ 1370 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 | Audi |
|---|---|---|
| Transmission Type | continuously variable-speed automatic | 8-speed shiftable automatic |
| Drivetrain Type | all wheel drive | all wheel drive |
| Center Differential Type | Limited Slip | Limited Slip |
| Hill Descent Control | — | ✓ |
Fuel
| Feature | INFINITI | Audi |
|---|---|---|
| Fuel Type | premium unleaded (recommended) | premium unleaded (required) |
| EPA Fuel Economy (City/Highway) | 22/28 MPG | 17/23 MPG |
| EPA Fuel Economy (Combined) | 25 MPG | 19 MPG |
| EPA Driving Range (City/Highway) | 352.0/448.0 mi. | 382.5/517.5 mi. |
| Fuel Tank Capacity | 16.0 gal. | 22.5 gal. |
Comfort & Convenience
| Feature | INFINITI | Audi |
|---|---|---|
| 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 | ✓ | ✓ |
| Front Parking Sensors | — | ✓ |
| Rear Parking Sensors with Side Sensing | — | ✓ |
| Three Zone Climate Control | — | ✓ |
| Rear Ventilation Ducts with Fan Control | — | ✓ |
| Interior Air Filtration | — | ✓ |
In Car Entertainment
| Feature | INFINITI | Audi |
|---|---|---|
| Infotainment Display | 8.0 in | 10.1 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 | 3 months |
| Stereo Power | — | 180W |
| Android Auto (Wireless) | — | ✓ |
| Apple CarPlay (Wireless) | — | ✓ |
| Speed Sensitive Volume Control | — | ✓ |
Power Feature
| Feature | INFINITI | Audi |
|---|---|---|
| One-Touch Power Windows | 4 | 4 |
| Moonroof Type | 1st Row Power Glass | 1st Row Power Glass Extended |
| Keyless Entry | ✓ | ✓ |
| Reverse Tilt Dual Mirrors | ✓ | — |
| Heated Mirrors | ✓ | ✓ |
Frontseats
| Feature | INFINITI | Audi |
|---|---|---|
| Front Head Room | 39.9 in. | 37.1 in. |
| Front Leg Room | 39.6 in. | 41.6 in. |
| Front Shoulder Room | 57.9 in. | 59.5 in. |
| Front Hip Room | 55.6 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 | 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 |
Rearseats
| Feature | INFINITI | Audi |
|---|---|---|
| Rear Head Room | 36.9 in. | 38.1 in. |
| Rear Leg Room | 38.7 in. | 40.2 in. |
| Rear Shoulder Room | 57.1 in. | 58.5 in. |
| Rear Hip Room | 53.8 in. | — |
| Split-Folding Rear Seatback | ✓ | ✓ |
| Reclining Rear Seats | ✓ | ✓ |
| Folding Center Armrest | ✓ | ✓ |
Tires and Wheels
| Feature | INFINITI | Audi |
|---|---|---|
| Wheel Finish | Painted Alloy | Painted Alloy |
| Wheel Diameter | 20 in. | — |
| Tire Size | 255/45R20 | 285/45R21 |
| Run Flat Tires | ✓ | — |
| Wheel Size | — | 21 in |
| Tire Type | — | All Season |
| Spare Tire Type | — | Temporary |
| Spare Tire Location | — | Inside 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./ 22500 mi. | 3 yr./ 30000 mi. |
Frequently Asked Questions
Common questions about comparing the 2025 INFINITI QX55 and 2026 Audi Q8.
How significant is the performance gap between the 2025 QX55 and the 2026 Q8?
The difference is substantial; the Q8 boasts 335 horsepower and 369 lb-ft of torque, a sizable increase over the QX55's 268 horsepower and 280 lb-ft of torque. This 67 hp advantage means the Q8 will feel significantly quicker in nearly all driving situations.
Is the QX55's lower fuel requirement an actual cost saver?
Yes, the QX55 offers 25 MPG combined compared to the Q8's 19 MPG combined, which translates to fewer stops at the pump. Furthermore, the QX55 recommends premium fuel, while the Q8 *requires* it, potentially adding to the Q8's running costs.
Which crossover is better suited for large families based on specifications?
The 2026 Audi Q8 is better equipped for families needing space, offering 33.7 cubic feet of cargo capacity versus the QX55's 26.9 cubic feet. The Q8 is also nearly 10 inches longer, suggesting more overall passenger volume.
What is the primary reason for the $25,450 price difference?
The large price variance reflects the Q8's higher base MSRP of $75,600 compared to the QX55's $50,150, stemming from its higher power output, larger dimensions, and positioning as a more premium offering.
How do the transmissions compare in driving feel?
The QX55 uses a continuously variable-speed automatic (CVT), which prioritizes smooth acceleration, while the Q8 utilizes a more traditional 8-speed shiftable automatic, which enthusiasts often prefer for crisper, programmed gear changes.
Does the AWD system differ significantly between these two luxury crossovers?
Both vehicles feature All-Wheel Drive, but they are paired with different setups; the QX55 has AWD paired with its CVT, while the Q8 has AWD integrated with its powerful 8-speed automatic, suggesting different torque management strategies.
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