Quick Summary:

Comparing the 2017 Mercedes-Benz GL-Class (now GLS) reveals two distinct models: the GL 450 4MATIC and the GL 550 4MATIC. The GL 450 offers refined V6 power and ample luxury, while the GL 550 delivers potent V8 performance and an even more opulent experience, both providing exceptional family-friendly utility and cutting-edge technology for their time.

Table of Contents

Mercedes GL-Class 2017 Comparison: Navigating Ultimate Luxury

As a Mercedes-Benz enthusiast, I understand that choosing your next luxury SUV can feel like a significant decision. The 2017 Mercedes-Benz GL-Class, which transitioned to the GLS designation later that year, represents the pinnacle of comfort, capability, and sophisticated style. Many of our readers often ask about the differences between the available trims, specifically how the GL 450 4MATIC and the GL 550 4MATIC stack up.

It’s easy to feel overwhelmed by the specifications and features. This guide is designed to simplify that comparison. We’ll break down each model, highlighting what makes them unique and helping you determine which one best suits your lifestyle and desires. Get ready to explore the ultimate blend of family-friendly practicality and Mercedes-Benz luxury.

Understanding the 2017 GL-Class Lineup

For 2017, the GL-Class lineup was streamlined as Mercedes-Benz began its rebranding of the SUV family. The primary models you’d encounter are the GL 450 4MATIC and the GL 550 4MATIC. While both share the same robust platform and a commitment to luxury, their differences lie in powertrain, standard features, and overall performance intent. Think of it as choosing between exceptional comfort and exhilarating power, all wrapped in the familiar, elegant package of a Mercedes-Benz.

The GL 450 4MATIC: Refined Power Meets Everyday Elegance

The Mercedes-Benz GL 450 4MATIC is often the entry point into the GL-Class experience, and it’s anything but basic. It’s engineered for those who appreciate smooth, effortless power and a supremely comfortable ride, perfect for daily commutes and long road trips alike.

Engine: Under the hood of the GL 450 resides a 3.0-liter biturbo V6 engine. This powerplant is known for its smooth delivery of power and impressive fuel efficiency for its class.
Performance: It generates around 362 horsepower and 384 lb-ft of torque. This is more than enough to confidently merge onto highways, pass slower vehicles, and handle various driving conditions, especially with the standard 4MATIC all-wheel-drive system.
Transmission: Power is managed by Mercedes-Benz’s 7G-TRONIC 7-speed automatic transmission. It’s tuned for comfort and seamless gear changes, contributing to the overall serene driving experience.
Key Features: Standard features on the GL 450 typically emphasize luxury and convenience. Expect high-quality leather upholstery, power-adjustable front seats, a power liftgate, and a sophisticated infotainment system controlled via the COMAND interface. Advanced safety features were also a hallmark, often including systems like COLLISION PREVENTION ASSIST PLUS and ATTENTION ASSIST.

The GL 450 4MATIC is a testament to Mercedes-Benz’s ability to blend performance with everyday usability. It’s the choice for discerning families who prioritize a luxurious, comfortable, and capable vehicle without the need for the absolute top-tier performance.

The GL 550 4MATIC: Unleashed Performance and Opulence

Stepping up to the GL 550 4MATIC means embracing a more potent driving experience and an even more lavish array of standard amenities. This model is for those who desire the thrill of a V8 engine and the ultimate expression of GL-Class luxury.

Engine: The heart of the GL 550 is its robust 4.7-liter biturbo V8 engine. This engine is the star of the show, offering significantly more power and torque for exhilarating acceleration and effortless cruising.
Performance: The V8 delivers an impressive 449 horsepower and a substantial 516 lb-ft of torque. This translates to quicker acceleration and a more commanding presence on the road.
Transmission: Like the GL 450, the GL 550 is paired with the 7G-TRONIC 7-speed automatic transmission, but it’s often tuned to feel more responsive, complementing the V8’s power. The 4MATIC all-wheel-drive system is, of course, standard here as well.
Enhanced Features: The GL 550 often comes standard with features that are optional on the GL 450. This can include things like larger alloy wheels, premium leather surfaces, ventilated and massaging front seats, a panoramic sunroof, a Harmon Kardon surround sound system, and more advanced driver-assistance technologies. The suspension is also often enhanced for better handling and ride quality.

The GL 550 4MATIC represents the ultimate expression of the 2017 GL-Class. It’s the choice for those who want not just luxury and capability, but also a truly thrilling performance experience.

Comparing Key Specifications: A Closer Look

To truly appreciate the differences, let’s put the numbers side-by-side. While both models share the same fundamental chassis and interior volume, the engine and performance metrics are where they significantly diverge.

(Note: EPA estimates may vary slightly depending on specific testing and options. Always check official EPA ratings for the most accurate figures.)

As you can see, the GL 550 has a clear advantage in acceleration and power, which is expected from its larger V8 engine. This comes at the cost of fuel efficiency, a common trade-off in performance vehicles. The towing capacity remains consistent, highlighting the robust engineering shared across both models.

Interior Comfort and Technology: Luxury for All

Both the GL 450 and GL 550 offer a lavish interior environment, but the GL 550 generally pushes the envelope further in terms of standard appointments.

GL 450 4MATIC Interior Highlights:

Seating: Comfortable, supportive seating upholstered in high-quality MB-Tex or optional leather.
Infotainment: Mercedes-Benz COMAND system with a central display, navigation, and Bluetooth connectivity.
Climate Control: Multi-zone automatic climate control for optimal passenger comfort.
Convenience: Power liftgate, power-folding third-row seats make utility easy.
Safety: Comprehensive suite of airbags and electronic stability programs, plus available advanced driver aids.

GL 550 4MATIC Interior Enhancements:

Premium Leather: Often comes standard with genuine Nappa leather upholstery.
Seat Upgrades: Standard ventilated and possibly massaging front seats for supreme comfort on long journeys.
Audio System: Upgraded Harman Kardon LOGIC 7 surround-sound system for an immersive listening experience.
Panoramas: A larger panoramic sunroof often standard, enhancing the sense of space.
Executive Touches: Additional trim options and interior lighting enhancements can be expected.

Regardless of which model you choose, the 2017 GL-Class interior is designed to impress. It’s a true testament to Mercedes-Benz’s commitment to craftsmanship and passenger well-being. The technology, while based on 2017 standards, remains intuitive and focused on enhancing the driving and ownership experience. For a deeper dive into Mercedes-Benz’s approach to interior design and technology, you can explore resources like Mercedes-Benz USA’s official technology pages.

Driving Dynamics and Capability

The GL-Class is built on a unibody chassis, which contributes to its more car-like ride compared to traditional body-on-frame SUVs. This structure, combined with Mercedes-Benz’s engineering prowess, results in a dynamic driving experience that balances comfort and control.

Suspension and Ride Quality

Both models typically feature an independent suspension system. The AIRMATIC suspension, often standard or available on these trims, is what truly elevates the ride quality. AIRMATIC allows the vehicle to adapt the damping characteristics to the road surface and driving conditions, smoothing out imperfections and providing a refined, composed feel. This system also allows for adjustable ride height, which can be beneficial for loading or clearing obstacles.

4MATIC All-Wheel Drive

The standard 4MATIC all-wheel-drive system in both the GL 450 and GL 550 provides enhanced traction and stability in various conditions, from wet roads to light off-road situations. It intelligently distributes torque between the front and rear axles to optimize grip and prevent wheel slip. While not a dedicated off-roader, the GL-Class is more than capable of handling unpaved roads, snow, and other challenging surfaces with confidence, making it a versatile choice for diverse climates. According to the National Highway Traffic Safety Administration (NHTSA), the robust safety systems and drivetrain of these SUVs contribute to their overall secure driving profile.

Towing and Utility

The 7,500-pound towing capacity is a significant advantage of the GL-Class. This makes it suitable for towing campers, boats, or utility trailers, expanding its functionality beyond passenger transport. The spacious interior, with its standard seven-seat configuration and the option for power-folding third-row seats, ensures ample room for passengers and cargo. The substantial cargo area behind the second row provides plenty of space for luggage or shopping.

When considering towing, it’s always wise to review the NHTSA’s towing safety guidelines to ensure you’re operating responsibly.

Choosing Between the GL 450 and GL 550

The decision between the 2017 GL 450 4MATIC and the GL 550 4MATIC largely comes down to your priorities and your appreciation for performance.

Consider the GL 450 4MATIC if:

Smooth, efficient power is paramount: You want a potent engine that’s refined and offers better fuel economy.
Your budget is a key factor: The GL 450 is generally more accessible, both in terms of initial purchase price and ongoing running costs.
You prioritize comfort and practicality over outright speed: You need a luxurious, capable SUV for family duties and long trips, but don’t necessarily crave blistering acceleration.
You want a strong foundation of Mercedes-Benz luxury and technology: The standard features are already extensive and impressive.

Consider the GL 550 4MATIC if:

You crave more power and thrilling acceleration: The V8 engine offers a significantly more dynamic driving experience.
You desire the most opulent standard features: The GL 550 often includes premium amenities as standard that are optional on the GL 450.
Fuel costs are less of a concern: You understand and accept the trade-off in fuel consumption for the enhanced performance.
You want the ultimate expression of the GL-Class luxury SUV: You aim for the top-tier experience within the 2017 GL-Class lineup.

Ultimately, both vehicles deliver the core Mercedes-Benz promise of safety, luxury, and capability. The choice is about the nuances of performance and the level of standard luxury you desire.

Frequently Asked Questions (FAQs)

Q1: What does “4MATIC” mean on the Mercedes-Benz GL-Class?
A1: 4MATIC is Mercedes-Benz’s sophisticated all-wheel-drive system. It enhances traction and stability by continuously distributing power between the front and rear wheels, ensuring confident handling in various driving conditions like rain, snow, or slippery roads.

Q2: Are the 2017 GL-Class models good for families?
A2: Yes, absolutely. The GL-Class is designed as a luxury family SUV. It comfortably seats up to seven passengers with a usable third row, offers ample cargo space, and comes equipped with advanced safety features and a smooth ride, making it ideal for children and adults alike.

Q3: What is the main difference between the GL 450 and GL 550?
A3: The primary difference lies in their engines. The GL 450 uses a 3.0-liter V6 engine, while the GL 550 features a more powerful 4.7-liter V8 engine. This results in the GL 550 offering significantly more horsepower and torque, leading to quicker acceleration. The GL 550 also typically includes more luxury features as standard.

Q4: What is the towing capacity of the 2017 GL-Class?
A4: Both the GL 450 4MATIC and GL 550 4MATIC models are capable of towing up to an impressive 7,500 pounds when properly equipped. This makes them suitable for towing a variety of trailers, from small boats to medium-sized campers.

Q5: Are there any known common issues with the 2017 GL-Class?
A5: Like any vehicle, the GL-Class can have minor issues. Common areas to inspect on used models include potential wear on suspension components (especially if equipped with AIRMATIC), and ensuring all electronic systems, particularly the COMAND infotainment, function correctly. Regular maintenance is key to preventing most problems. Consulting a pre-purchase inspection by a Mercedes-Benz specialist is always recommended.

Q6: What were the safety features like on the 2017 GL-Class?
A6: The 2017 GL-Class came with a comprehensive suite of standard and available safety features. These typically included multiple airbags, ABS, traction control, stability control, a rearview camera, and advanced driver assistance systems such as COLLISION PREVENTION ASSIST PLUS (which could automatically apply brakes), ATTENTION ASSIST (which detects driver drowsiness), and optional Blind Spot Assist and Lane Keeping Assist.

* Q7: Is the 2017 GL-Class considered a luxury SUV?
A7: Yes, the 2017 Mercedes-Benz GL-Class is unequivocally a luxury SUV. It offers premium materials, a refined driving experience, advanced technology, and the prestigious Mercedes-Benz badge, placing it squarely in the luxury segment.

The Legacy of the GL-Class (Now GLS)

The 2017 GL-Class represents a mature and highly accomplished generation of Mercedes-Benz’s full-size luxury SUV. While it has since evolved into the GLS-Class, this model year remains a compelling option for those seeking space, comfort, and the signature Mercedes-Benz driving experience. Whether you opt for the balanced performance of the GL 450 or the spirited power of the GL 550, you’re investing in a vehicle that excels in nearly every category.

From its robust construction and sophisticated all-wheel-drive system to its opulent interior and advanced technology, the 2017 GL-Class is a testament to Mercedes-Benz’s engineering excellence. It’s a vehicle designed to make every journey, whether a daily commute or a cross-country adventure, a truly luxurious experience. For anyone in the market for a premium, seven-passenger SUV, the GL-Class remains a highly desirable choice.

I hope this detailed comparison has provided clarity and confidence in your decision-making process. Enjoy the journey of owning a Mercedes-Benz!

Mercedes GL-Class 2017 Comparison: Ultimate Luxury

Mercedes GL-Class 2017 Comparison: Navigating Ultimate Luxury

Understanding the 2017 GL-Class Lineup

The GL 450 4MATIC: Refined Power Meets Everyday Elegance

The GL 550 4MATIC: Unleashed Performance and Opulence

Comparing Key Specifications: A Closer Look