2025 Mercedes-Benz GLS 450 vs 2025 Mercedes-Benz GLS 580

Performance

The GLS lineup offers versatile performance with standard 4MATIC® all-wheel drive, a nine-speed automatic transmission, and adaptive air suspension for confident handling across Arizona’s varied terrain.

• The GLS 450 features a 3.0L turbocharged inline-6 engine producing 375 horsepower and 369 lb-ft of torque. It’s perfect for smooth commutes through Flagstaff, road trips across I-40, or scenic drives to Sedona.
• The GLS 580 upgrades to a 4.0L turbocharged V8 engine delivering 510 horsepower and 538 lb-ft of torque. Designed for thrill-seekers, this SUV offers commanding acceleration and a stronger road presence, ideal for long drives across Arizona highways.

Both models offer refinement, but the GLS 580 is the ultimate choice for drivers who prioritize sheer performance.

Appearance

The 2025 Mercedes-Benz GLS blends sophistication and sportiness with a design that commands attention. Both trims include signature LED headlights with dual light bars, a bold upright grille with metallic accents, and sculpted lines for a powerful stance.

• The GLS 450 includes 21-inch alloy wheels, adaptive LED headlights, and a hands-free power liftgate for everyday convenience.
• The GLS 580 enhances the design with 22-inch wheels, performance tires, and sport-inspired styling elements for a more aggressive look.

From downtown Flagstaff to the mountain roads of Northern Arizona, both SUVs deliver a strong visual presence.

Features

Step inside either GLS model, and you’ll find a cabin built for luxury and connectivity. Both SUVs feature a 12.3-inch MBUX infotainment system, customizable ambient lighting, a panoramic sunroof, heated front seats with memory, wireless charging, and smartphone integration with Apple CarPlay® and Android Auto®. Power-folding third-row seating ensures flexibility for passengers and cargo alike.

Safety and convenience are prioritized with features such as augmented reality navigation, lane-keeping assist, cross-traffic alert, and evasive steering assist.

The GLS 580 builds on this foundation with premium upgrades, including full leather upholstery, soft-close doors, a heated steering wheel, and five-zone climate control—ideal for year-round Flagstaff driving comfort.

Why Buy the 2025 Mercedes-Benz GLS at Mercedes-Benz of Northern Arizona?

When shopping for a luxury SUV in Flagstaff, AZ, Mercedes-Benz of Northern Arizona is your trusted destination. We proudly serve Northern Arizona drivers with a wide selection of new Mercedes-Benz SUVs, flexible financing and lease options, and a certified service center dedicated to maintaining your vehicle’s performance.

Whether you’re considering the GLS 450 or upgrading to the GLS 580, our team is here to provide expert guidance and a first-class dealership experience. Stop by for a test drive today.

Frequently Asked Questions

What engine does the 2025 Mercedes-Benz GLS 450 have?

The GLS 450 comes with a 3.0L turbocharged inline-6 engine producing 375 horsepower.

How powerful is the 2025 Mercedes-Benz GLS 580?

The GLS 580 features a 4.0L turbocharged V8 engine delivering 510 horsepower and 538 lb-ft of torque.

Do both GLS models come with 4MATIC® all-wheel drive?

Yes, every 2025 GLS SUV includes standard 4MATIC® all-wheel drive.

What interior upgrades does the GLS 580 include?

The GLS 580 adds leather seating, soft-close doors, a heated steering wheel, and five-zone climate control.

Can I test drive the 2025 GLS 450 and GLS 580 in Flagstaff?

Absolutely! Visit Mercedes-Benz of Northern Arizona in Flagstaff, AZ to test drive both models and find the right SUV for your lifestyle.