QX80 vs GLS 450: Should You Get INFINITI or Mercedes-Benz?
A luxury SUV is one of the most impactful purchasing decisions you can make in your life. The QX80 vs GLS 450 is a common comparison since both options offer some of the most impressive interiors and tech features in the automotive industry.
RBM INFINITI has a definitive buyer’s guide to get you closer to the SUV you’ve always wanted.
| Category | INFINITI QX80 | Mercedes-Benz GLS 450 |
|---|---|---|
| Vehicle Class | Full-size luxury SUV | Full-size luxury SUV |
| Seating Capacity | 7 (or 8 with split-bench package) | 7 |
| Standard Engine | 3.5L V6 | 3.0L I-6 Turbo |
| Horsepower | 450 | 375 |
| Torque | 516 | 369 |
| Transmission | 9-Speed Automatic | 9-Speed Automatic |
| Fuel Economy | 16 mpg (city), 19 mpg (highway) | 19 mpg (city), 24 mpg (highway) |
| Max Towing | 8,500 lbs | 7,700 lbs |
| Max Cargo Volume | 101 cubic feet | 84.7 cubic feet |
| Starting MSRP | $83,750 (or up to $112,195 for top trims) | $90,250 |
| Basic Warranty | 4-year or 60,000 miles | 4-year or 50,000 miles |
| Best For | Families requiring class-leading cargo capacity, heavy towing capability, and a robust body-on-frame premium design. | Families prioritizing exceptional ride refinement, cutting-edge interior technology, and a smooth, uncompromised third row of seats. |
INFINITI QX80
Mercedes-Benz GLS 450
QX80 vs GLS 450: Price and Value
When it comes to price and value, the INFINITI QX80 continues to impress with its long warranty and relatively lower cost. However, you may still enjoy the Mercedes-Benz GLS 450 for its customizable maintenance schedule.
| Cost Factor | INFINITI QX80 | Mercedes-Benz GLS 450 |
|---|---|---|
| Starting MSRP | $85,590 | $90,250 |
| Max Model Line MSRP | $111,500 | $151,050 |
| Standard Warranty | 4-year or 60,000 miles | 4-year or 50,000 miles |
| Powertrain Warranty | 6-year or 70,000 miles | 4-year or 50,000 miles |
| Complimentary Maintenance | Oil changes, oil filter changes, and tire rotations for up to 3 years or 36,000 miles (capped at 3 service visits total). | None |
| Best Value Trim | LUXE Grade: Adds 22-inch wheels and a Head-Up Display for the balance of luxury and cost. | 450 4MATIC® (with Pinnacle Package): The entry 6-cylinder model offers the best fuel economy and features; adding the Pinnacle Package adds high-end luxury tech at a reasonable price. |
Performance Specs: Which SUV Has the Better Engine?
The INFINITI QX80 combines luxury with power, with high torque and horsepower at the standard level. Drivers interested in different trim levels may prefer the Mercedes-Benz GLS 450, which boasts higher horsepower along with other features.
| Performance Spec | INFINITI QX80 | Mercedes-Benz GLS 450 |
|---|---|---|
| Engine | 3.5L V6 | 3.0L I-6 Turbo |
| Horsepower | 450 | 375 |
| Torque | 516 | 369 |
| Transmission | 9-speed automatic | 9-speed automatic |
| Drivetrain | 2WD or 4WD, depending on trim | AWD 4MATIC® |
| Performance Advantage | Greater horsepower, torque, and towing capability | Smooth mild-hybrid performance and refined European driving dynamics |
Interior Comfort and Luxury Features
The QX80 and GLS 450 both provide silky interiors that make each drive feel better than the last. Where they differ is in customization, with the QX80 offering more value up front compared to the GLS 450’s extensive trim levels.
INFINITI QX80 — Interior
Mercedes-Benz GLS 450 — Interior
| Interior Feature | INFINITI QX80 | Mercedes-Benz GLS 450 |
|---|---|---|
| Seating Capacity | 7 (or 8 with split-bench package) | 7 |
| Available Captain’s Chairs | Yes (on most trims) | Yes |
| Heated Front Seats | Yes | Yes |
| Ventilated Front Seats | Yes | Yes |
| Massaging Front Seats | Yes (depending on trim) | Yes (depending on trim) |
| Premium Audio | Klipsch Audio System | 13-speaker Burmester Surround Sound System |
| Panoramic Moonroof | Yes | Yes |
| Interior Materials | Color-customized Graphite TailorFit® (similar to Nappa leather) and wood trims | Leather seats and brushed aluminum trim |
| Interior Design Focus | Exceptional craftsmanship and interior color customization for a one-of-a-kind look. | Sleek and professional for business travelers or drivers who enjoy broad customization options. |
Cargo Space and Passenger Room
Do you plan on enjoying long vacations with family or regular visits to your favorite camping site? The INFINITI QX80’s larger cargo volume is ideal for storing luggage or transporting pets, while the GLS 450 is better for smaller groups or business travel.
| Space Category | INFINITI QX80 | Mercedes-Benz GLS 450 |
|---|---|---|
| Seating Capacity | 7 (or 8 with split-bench package) | 7 |
| Max Cargo Volume | 101 cubic feet | 84.7 cubic feet |
| Third-Row Access | Yes | Yes |
| Best For | Large families who prioritize cargo capacity and need the option to fit up to 8 people. | Families who don’t need as much cargo space. |
Technology and Infotainment
When it comes to large, crisp displays, you’ll be more than impressed with the INFINITI QX80’s standard offerings. The GLS 450 has smaller displays and a few more trim levels you’ll need to customize to your needs.
| Technology Feature | INFINITI QX80 | Mercedes-Benz GLS 450 |
|---|---|---|
| Main Display | 14.3-inch high-definition | 12.3-inch MBUX Touchscreen |
| Digital Gauge Display | 14.3-inch digital instrument cluster | 12.3-inch Reconfigurable |
| Wireless Apple CarPlay® | Yes | Yes |
| Wireless Android Auto™ | Yes | Yes |
| Google Built-In | Yes | No (uses native Mercedes MBUX interface) |
| Premium Audio | Klipsch Audio System | 13-speaker Burmester Surround Sound |
| Head-Up Display | Yes | Yes (available via Pinnacle or standalone option packages) |
| Parking Camera Tech | Around View Monitor® with a virtual 360° view | Active Parking Assist |
| Tech Advantage | Larger dual-screen interface and a highly advanced native Google Automotive OS. | Incredibly responsive, highly optimized MBUX voice assistant and standard augmented reality capability. |
Safety and Driver-Assistance Features
The QX80 vs GLS 450 is a two-way tie due to both SUVs offering a standard suite of driving and safety technology. They both offer staples like surround-view cameras, cruise control, and automated braking.
| Safety/Driver-Assist Feature | INFINITI QX80 | Mercedes-Benz GLS 450 |
|---|---|---|
| Forward Emergency Braking | Yes | Yes |
| Blind Spot Warning/Intervention | Yes | Yes |
| Lane Departure Warning/Prevention | Yes | Yes |
| Adaptive Cruise Control | Yes | Yes |
| Surround-View Camera | 3-D Around View Monitor with 180° Front Wide View Camera | Surround View System |
| Advanced Highway Assist | ProPILOT Assist 2.1 | Driver Assistance Package (Active Distance Assist DISTRONIC®) |
| Safety Highlight | Exceptional perimeter visibility tech paired with advanced hands-free highway mapping. | Highly predictive, radar-managed active lane-keeping and side-impact preventative tech. |
Warranty, Maintenance, and Ownership Value
Buyers who want to own their SUV for a long time or pass it down to their children will likely prefer the INFINITI QX80 due to its longer warranty. The Mercedes-Benz GLS 450 is still a suitable option for owners who prefer to customize their maintenance coverage.
| Ownership Factor | INFINITI QX80 | Mercedes-Benz GLS 450 |
|---|---|---|
| Basic Warranty | 4-year or 60,000 miles | 4-year or 50,000 miles |
| Powertrain Warranty | 6-year or 70,000 miles | 4-year or 50,000 miles |
| Complimentary Maintenance | Up to 3 oil changes and 3 tire rotations for up to 3 years or the designated mileage. | None |
| Roadside Assistance | Yes (4 years, unlimited miles) | Yes (4 years, 50,000 miles) |
| Ownership Advantage | A standout long-term option due to a longer warranty, extended mileage limits, and built-in complimentary care. | Customizable maintenance tiers could be appealing to owners with more specific needs in mind. |
QX80 vs GLS 450: Which SUV Is Better for Families?
We highly recommend the INFINITI QX80 for families due to its greater towing capacity and cargo volume. However, smaller families or couples may still enjoy the Mercedes-Benz GLS 450 for its fuel efficiency.
| Family Needs | Better Fit | Why |
|---|---|---|
| Towing Recreational Gear | INFINITI QX80 | Greater towing capacity is great for families who camp or travel regularly. |
| Maximum Cargo Volume | INFINITI QX80 | Larger cargo volume is a must for large families or those with pets. |
| Everyday Comfort | Both | Both luxury SUVs impress with sleek interiors and advanced tech. |
| Sporty Driving Feel | Mercedes-Benz GLS 450 | Sophisticated unibody chassis and crisp steering provide tight cornering agility. |
| Fuel Efficiency | Mercedes-Benz GLS 450 | Higher fuel economy for both city and highway travel. |
| Warranty Coverage | INFINITI QX80 | Longer warranty is ideal for buyers looking to minimize out-of-pocket repair risks over time. |
| Luxury Value | Both | Both brands have a strong reputation for quality materials, a broad tech suite, and trustworthy customer service. |
Reasons to Choose the INFINITI QX80 over the Mercedes-Benz GLS 450
When it comes to raw power and premium materials, the INFINITI QX80 continues to turn heads. This luxury option provides a full package for large families who use their SUV for vacation travel, business, and day-to-day life.
Choose the INFINITI QX80 if you want:
Reasons to Choose the Mercedes-Benz GLS 450 over the INFINITI QX80
A smaller vehicle that focuses more on reliable fuel efficiency may be best for solo drivers, couples, or families that don’t need an SUV for travel or recreation. The Mercedes-Benz GLS 450 also provides an impressive level of customization that can make your purchase feel more unique.
Choose the Mercedes-Benz GLS 450 if you want:
Final Verdict: Should You Buy the Mercedes-Benz GLS 450 or INFINITI QX80?
The Mercedes-Benz GLS 450 delivers the refined driving experience, premium craftsmanship, and luxury reputation buyers have come to expect from this brand. However, the INFINITI QX80 stands out for shoppers who need more horsepower, greater towing capabilities, larger cargo capacity, and longer warranty coverage.
If you’re still comparing the QX80 vs GLS 450, the best way to experience the difference is from behind the wheel. Review our financing options, then browse our current INFINITI QX80 inventory or schedule a test drive today.
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