2026 INFINITI QX80 vs 2026 Mercedes-Benz Amg Gt
Comparison Overview
The 2026 INFINITI QX80 erupts onto the scene with a commanding 450 horsepower and a massive 516 lb-ft of torque, establishing itself as the powerhouse in this dynamic duo. Conversely, the 2026 Mercedes-Benz AMG GT captivates with its focused, all-wheel-drive handling wrapped in a sophisticated Wagon shell, offering a more efficient 21 combined MPG despite its higher $102,100 MSRP. The QX80, priced at $83,750, dwarfs the AMG GT in physical presence with a length of 211.2 inches versus the Mercedes' 199.0 inches, translating directly into superior family utility with 22 cu ft of cargo capacity. However, the AMG GT counters with an 88 horsepower deficit, making the QX80 the clear choice for sheer on-road muscle and space, while the Benz prioritizes agility and efficiency for spirited driving.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2026 INFINITI QX80
The QX80's larger size and marginally better highway MPG of 20, combined with a lower entry price, slightly benefit the daily driver.
2026 INFINITI QX80
The QX80 decisively wins family duties due to its expansive 22 cu ft cargo capacity compared to the AMG GT's 16.1 cu ft.
2026 INFINITI QX80
The QX80’s massive output of 450 hp and 516 lb-ft of torque far outmuscles the AMG GT’s performance metrics.
2026 INFINITI QX80
The QX80 offers significantly more power and utility for an MSRP that undercuts the AMG GT by $18,350.
Choose the INFINITI QX80 if...
- You prioritize brute force, demanding the available 450 hp and 516 lb-ft of torque.
- Maximum utility is essential, requiring the larger 211.2-inch length and 22 cu ft of cargo space.
- You want to save $18,350 initially, as the QX80 starts at an MSRP of $83,750.
Choose the Mercedes-Benz Amg Gt if...
- You seek better fuel economy, earning 21 combined MPG versus the QX80's 18.
- All-wheel drive capability is necessary for varied driving conditions, unlike the QX80's RWD setup.
- A lower, sleeker profile (57.3 inches high) and smaller footprint appeal more than the bulky SUV stance.
Key Dimensions
| Dimension | INFINITI QX80 | Mercedes-Benz Amg Gt |
|---|---|---|
| Length | 211.2" | 199.0" |
| Width | 83.3" | 76.9" |
| Height | 76.6" | 57.3" |
| Wheelbase | 121.1" | 116.2" |
Features Comparison
Safety
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| 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 | 2 |
| Rear Height Adjustable Headrests | ✓ | — |
| Anti-Theft Alarm System (Remote) | ✓ | ✓ |
| Engine Immobilizer | ✓ | ✓ |
| Brake Drying | — | ✓ |
| Adaptive Headlights | — | ✓ |
| Front Power Adjustable Headrests | — | ✓ |
| Rear Integrated Headrests | — | ✓ |
Engine
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Base Engine Displacement | 3.5 L | 3.0 L |
| Number of Cylinders | V6 | inline 6 |
| Base Engine Type | gas | mild hybrid |
| Horsepower | 450 hp @ 5600 rpm | 362 hp @ 5500 rpm |
| Torque | 516 lb-ft @ 3600 rpm | 369 lb-ft @ 1800 rpm |
| Number of Valves | 24 | 24 |
| Camshaft Type | Double overhead cam (DOHC) | Double overhead cam (DOHC) |
| Variable Valve Timing | Variable | Variable |
| Fuel Injection Type | ✓ | ✓ |
Drive Train
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Transmission Type | 9-speed shiftable automatic | 9-speed shiftable automatic |
| Drivetrain Type | rear wheel drive | all wheel drive |
| [object Object] | — | ✓ |
| [object Object] | — | ✓ |
Fuel
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Fuel Type | premium unleaded (recommended) | premium unleaded (required) |
| EPA Fuel Economy (City/Highway) | 16/20 MPG | 19/24 MPG |
| EPA Fuel Economy (Combined) | 18 MPG | 21 MPG |
| EPA Driving Range (City/Highway) | 377.6/472.0 mi. | 400.9/506.4 mi. |
| Fuel Tank Capacity | 23.6 gal. | 21.1 gal. |
Comfort & Convenience
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| 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 | — | ✓ |
| Automatic Parking Assist | — | ✓ |
| Cruise Control | — | ✓ |
| Dual Zone Climate Control | — | ✓ |
| Rear Ventilation Ducts | — | ✓ |
| Sun Sensor | — | ✓ |
In Car Entertainment
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Infotainment Display | 14.3 in | 12.3 in |
| AM/FM Stereo | ✓ | ✓ |
| Klipsch Speakers | ✓ | — |
| Stereo Power | 600W | 640W |
| Speaker System | 14 | 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 | 6 months |
| Speed Sensitive Volume Control | ✓ | ✓ |
| Premium Brand Stereo System | — | Burmester |
| Premium Speaker Brand | — | Burmester |
| Surround Audio | — | Discrete |
Power Feature
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| One-Touch Power Windows | 4 | 4 |
| Moonroof Type | 1st Row Power Glass Extended | 1st Row Power Glass |
| Keyless Entry | ✓ | ✓ |
| Reverse Tilt Dual Mirrors | ✓ | — |
| Heated Mirrors | ✓ | ✓ |
Frontseats
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Front Head Room | 39.1 in. | 40.8 in. |
| Front Leg Room | 43.8 in. | 41.7 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 | 3 |
| 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: Leatherette/Sueded Microfiber | — | ✓ |
| Driver Seat Thigh Extension | — | ✓ |
| Passenger Seat Thigh Extension | — | ✓ |
| Passenger Seat Memory Settings | — | 3 |
Rearseats
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Rear Head Room | 37.8 in. | 38.2 in. |
| Rear Leg Room | 39.2 in. | — |
| Rear Shoulder Room | 63.7 in. | 57.2 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 | ✓ | — |
Tires and Wheels
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Wheel Material | Alloy | Alloy |
| Wheel Size | 20 x 8.0 in | 19 x 11.0 in. |
| Tire Type | All Season | Performance |
| Tire Size | 275/60R20 | 285/40R19 |
| Spare Tire Type | Full Size Non-Matching | — |
| Spare Tire Location | Underbody Mounted | — |
Suspension
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| Four-Wheel Independent Suspension | ✓ | ✓ |
| Front Stabilizer Bar | ✓ | ✓ |
| Rear Stabilizer Bar | ✓ | ✓ |
Warranty
| Feature | INFINITI | Mercedes-Benz |
|---|---|---|
| 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. | 4 yr./ 50000 mi. |
| Roadside Assistance | 4 yr./ 60000 mi. | 4 yr./ 50000 mi. |
| Complimentary Scheduled Maintenance | 3 yr./ 45000 mi. | — |
| Hybrid Component Warranty | — | 6 yr./ 62000 mi. |
Frequently Asked Questions
Common questions about comparing the 2026 INFINITI QX80 and 2026 Mercedes-Benz Amg Gt.
What is the primary advantage of the 2026 QX80 over the AMG GT?
The QX80's primary advantage is raw power and size; it delivers 450 horsepower compared to the AMG GT's 362 hp. Furthermore, its larger 211.2-inch length provides 22 cu ft of cargo room, which is substantially more than the Benz's 16.1 cu ft.
Is the 2026 Mercedes-Benz AMG GT more efficient for daily commuting?
Yes, the AMG GT offers superior efficiency, achieving 21 combined MPG compared to the QX80's 18 combined MPG. It also utilizes an AWD system, which some commuters prefer over the QX80's standard rear-wheel drive.
How significant is the price difference between these two vehicles?
The difference is considerable; the 2026 INFINITI QX80 starts at $83,750, while the 2026 Mercedes-Benz AMG GT demands a premium price of $102,100, resulting in a $18,350 gap.
Which vehicle has the better specification for towing or hauling heavy loads?
The QX80 is engineered for more substantial hauling, evidenced by its superior torque figure of 516 lb-ft, significantly exceeding the AMG GT’s 369 lb-ft. Its larger SUV dimensions also typically correlate with higher towing capacities.
Does the driving dynamic favor performance or practicality between these two?
The driving dynamic leans heavily toward performance and agility in the AMG GT, despite having less horsepower, due to its lower height and AWD system. Conversely, the QX80 prioritizes brute force acceleration and passenger capacity typical of large SUVs.
Are both models capable of handling regular highway cruising efficiently?
Both vehicles feature a 9-speed shiftable automatic transmission suitable for cruising. However, the QX80 manages 20 highway MPG while the AMG GT achieves 24 highway MPG, giving the Mercedes a slight edge in sustained highway travel.
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