Mercedes-Benz GLS Maybach & GLS AMG Review: The Ultimate Luxury SUV Experience
Welcome to another chapter of our Mercedes-Benz GLS Buyer’s Guide: Which Model Is Right for You? Today, we’re diving into the two most exclusive trims of the GLS lineup—the ultra-luxurious GLS Maybach and the high-performance GLS AMG.
If you’re looking for an SUV that combines elegance, power, and cutting-edge technology, these two are top contenders. But which one should you consider? And more importantly, why is buying a used GLS a smart choice? Let’s find out.
The Evolution of the Mercedes-Benz GLS Maybach & GLS AMG
The Mercedes-Benz GLS has always been the brand’s full-size luxury SUV, but Mercedes took things a step further by offering two exclusive versions—one focused on high-performance driving and the other on ultimate luxury. The GLS AMG brings track-ready speed to an SUV, while the GLS Maybach transforms the GLS into a first-class lounge on wheels. Let’s take a closer look at how these models evolved.
The AMG Evolution: From the GL 63 to the GLS 63 AMG
Mercedes’ AMG division has a long history of taking luxury vehicles and turning them into high-performance beasts. The GLS AMG story began back in 2013 when the SUV was still called the GL-Class.
- 2013-2015 GL 63 AMG – The high-performance version of the GL-Class featured a 5.5L twin-turbo V8 producing 550 hp and 561 lb-ft of torque. It was paired with a 7-speed automatic transmission and an AWD system, making it one of the fastest SUVs of its time.
- 2016-2019 GLS 63 AMG – With the renaming of the GL-Class to GLS, AMG also updated the performance model. The GLS 63 AMG kept the 5.5L twin-turbo V8, but power was increased to 577 hp and 561 lb-ft of torque.
- 2020-Present GLS 63 AMG – The current generation introduced a new 4.0L twin-turbo V8 with mild-hybrid EQ Boost, delivering 603 hp and 627 lb-ft of torque. This engine is paired with a 9-speed automatic transmission and AMG’s active ride control system, improving both comfort and handling.
The Rise of the Maybach GLS: Ultimate Luxury Arrives
Unlike the AMG model, the GLS Maybach wasn’t introduced until the second generation of the GLS. Before that, the Maybach name was reserved for ultra-luxury sedans like the Mercedes-Maybach S-Class.
- 2020-Present GLS 600 Maybach – The GLS 600 Maybach debuted in 2019 for the 2021 model year, offering a 4.0L twin-turbo V8 with 550 hp and 538 lb-ft of torque. While slightly less powerful than the AMG version, it prioritizes ride comfort over performance.
- Key features exclusive to the Maybach GLS include:
Reclining executive rear seats with massage function
Exclusive Nappa leather & real wood trims
Acoustic insulation for an ultra-quiet cabin
Optional champagne fridge & silver-plated goblets
Unlike the AMG model, which is designed for spirited driving, the Maybach GLS is built for those who prefer to be chauffeured. It competes with other ultra-luxury SUVs like the Rolls-Royce Cullinan and Bentley Bentayga.
With these two models, Mercedes has successfully turned the GLS into both a high-performance machine and a VIP lounge on wheels—giving buyers the best of both worlds.
Comprehensive Specs & Features: Breaking Down the Maybach & AMG
The Mercedes-Benz GLS Maybach and GLS AMG may share the same SUV platform, but they couldn’t be more different. One is built for thrill-seekers, while the other is designed for first-class luxury. Let’s break them down in simple terms, so you can see which one fits your style.
GLS AMG: The High-Performance Beast
The GLS 63 AMG is not just a big luxury SUV—it’s a powerhouse on wheels. Under the hood, you get a 4.0L twin-turbo V8 with a mild-hybrid EQ Boost system, pushing out 603 hp and 627 lb-ft of torque. That means this three-row SUV can go from 0-60 mph in just 3.6 seconds—as fast as some sports cars!
The 9-speed AMG Speedshift transmission delivers lightning-fast shifts, while the 4MATIC+ all-wheel drive system keeps all that power under control. The active ride control suspension ensures that the GLS AMG stays stable, whether you’re racing down the highway or taking sharp corners.
How It Feels to Drive
From the driver’s seat, the GLS AMG feels shockingly quick for its size. The steering is sharp, and the engine sound is addictive—especially in Sport+ or Race mode, where the exhaust crackles and pops on downshifts.
- Comfort Mode – Smooth and quiet, perfect for daily driving.
- Sport+ Mode – Sharper throttle response, louder exhaust, and firmer suspension.
- Race Mode – Maximum performance, launch control engaged, pure AMG madness.
Of course, all this power has a downside. The GLS AMG isn’t great on gas, averaging around 14-18 mpg combined, and maintenance costs are high. But if you want an SUV that’s just as thrilling as a sports car, this is the one to get.
Quick Summary of the GLS AMG
603 hp & 627 lb-ft torque (with EQ Boost)
0-60 mph in 3.6 seconds
4.0L twin-turbo V8 engine
9-speed AMG automatic transmission
Adjustable drive modes: Comfort, Sport+, Race
Active ride suspension for sharp handling
Fuel economy: 14-18 mpg (not great, but who cares?)
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- The driver-focused cockpit of the 2022 Mercedes-Benz GLS 63 AMG blends technology, luxury, and performance seamlessly.
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- Power meets precision—inside the Mercedes-Benz GLS 63 AMG with its handcrafted AMG 4.0L V8 Biturbo engine.
GLS Maybach: The Ultimate Luxury Lounge
If the GLS AMG is all about power and speed, the GLS 600 Maybach is about comfort and elegance. Instead of focusing on high performance, the Maybach is designed to make every ride feel like a first-class experience.
Under the hood, it has a 4.0L twin-turbo V8 with 550 hp and 538 lb-ft of torque—plenty of power, but tuned for effortless cruising. Unlike the AMG model, the Maybach ditches Sport+ and Race modes in favor of Maybach Mode, which smooths out every movement for an ultra-refined ride.
Inside, it’s all about luxury. The third row is removed, making room for two massive reclining executive lounge seats with massage functions, heating, cooling, and even calf supports. You can even add a champagne fridge with silver-plated goblets.
Mercedes also made sure the GLS Maybach is whisper-quiet inside. Extra soundproofing, thick glass, and a suspension system that scans the road ahead make it feel like you’re floating.
How It Feels to Drive
Driving the GLS Maybach is smooth and effortless. The steering is light, the brakes are gentle, and the engine barely makes a sound. It’s meant to be chauffeur-driven, but if you decide to take the wheel yourself, it’s still surprisingly easy to handle.
- Maybach Mode – Prioritizes comfort, softens throttle response, and ensures a cloud-like ride.
- Silent Cabin – Almost no road noise, even at high speeds.
- Fuel Economy – Slightly better than the AMG, averaging 15-20 mpg.
Quick Summary of the GLS Maybach
550 hp & 538 lb-ft torque (smooth, not aggressive)
4.0L twin-turbo V8 engine
9-speed automatic transmission
Maybach Mode for ultra-luxury cruising
Reclining executive rear seats with massage & heating
Optional champagne fridge & silver-plated goblets
Fuel economy: 15-20 mpg (better than AMG, but still thirsty)
Drive the Ultimate Mercedes-Benz GLS! Discover your perfect GLS Maybach or AMG today.
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- Experience effortless power with the 2021 Mercedes-Benz GLS 600 Maybach’s 4.0L V8 Biturbo engine, engineered for ultimate luxury and performance.
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- Step inside the 2023 Mercedes-Benz GLS 600 Maybach—where elegance meets innovation in every detail.
Which One Should You Choose?
- Want high performance, aggressive styling, and a roaring V8? Go for the GLS AMG.
- Want first-class luxury, silence, and a ride smoother than butter? Get the GLS Maybach.
Both SUVs represent the best of what Mercedes has to offer—whether you’re a speed enthusiast or someone who just wants to ride in style. Either way, you’re getting one of the best full-size luxury SUVs on the market.
Common Issues & Maintenance Tips
Mercedes-Benz is known for engineering excellence, but even the best vehicles have their weak points. If you’re considering a used GLS Maybach or GLS AMG, here are a few things to look out for:
Common Issues in Used GLS Maybach & AMG Models
- Air Suspension Problems – The GLS comes with AIRMATIC or E-Active Body Control suspension, which makes the ride ultra-smooth. However, over time, air suspension components can wear out or leak, leading to costly repairs.
- Electronic Gremlins – Mercedes-Benz vehicles are packed with technology, and some models have been known to experience glitches in the infotainment system, sensors, and driver assistance features.
- Oil Leaks & Turbocharger Wear – The 4.0L twin-turbo V8 in both models is a powerhouse, but it requires proper maintenance. Oil leaks and turbocharger issues can arise if previous owners didn’t follow service schedules.
- Brake Wear – The GLS AMG, in particular, is heavy and puts a lot of stress on the brakes. If you’re buying used, check the brake pads and rotors to avoid unexpected costs.
- Battery Drain Issues – Some owners have reported that advanced electronic systems can drain the battery if the car isn’t driven regularly. If you’re purchasing a used model, make sure the battery is in good condition.
Maintenance Tips for a Used GLS Maybach or AMG
- Service History Matters – Always check the service records to ensure the car was maintained at a Mercedes-Benz dealership or a trusted specialist.
- Suspension Inspection – Have a mechanic inspect the air suspension system before purchasing. Repairs can be expensive.
- Oil Changes & Engine Care – Stick to recommended oil change intervals and use high-quality synthetic oil to keep the engine running smoothly.
- Brake Checks – Look for signs of uneven brake wear or vibrations when braking—these could indicate the need for new rotors or pads.
- Software Updates – Ensure the vehicle has the latest Mercedes-Benz software updates, as they often fix known electronic issues.
Test Drive a Mercedes GLS in Nashville! Visit AutoPro Nashville for a hands-on experience.
Now, let’s see how the GLS Maybach and AMG compare to their biggest rivals.
Competitive Analysis: How Does the GLS Maybach & AMG Compare?
The Mercedes-Benz GLS Maybach and AMG aren’t the only full-size luxury SUVs in the game. Let’s see how they stack up against three top competitors:
BMW X7 M60i & Alpina XB7
BMW’s X7 lineup offers both high-performance (M60i) and ultra-luxury (Alpina XB7) versions, making it the closest competitor to the GLS AMG and GLS Maybach.
- Performance: The X7 M60i has a 4.4L twin-turbo V8 with 523 hp, while the Alpina XB7 pushes 631 hp—outgunning the GLS AMG slightly. However, the X7 M60i isn’t as aggressive as the GLS 63 AMG, and the Alpina is more about refined speed than raw power.
- Luxury & Features: The Alpina XB7’s interior is opulent, but the GLS Maybach’s rear executive seating package and whisper-quiet cabin give it an edge in pure comfort. The X7 still has a third row, while the Maybach removes it for VIP seating.
- Reliability & Maintenance: BMWs have similar electronic and air suspension concerns, but the GLS has a more complex hydraulic suspension in some trims, which can be costly to maintain.
Verdict: The X7 M60i is a solid alternative to the GLS AMG, but the Maybach has a more luxurious interior than the Alpina XB7.
Cadillac Escalade-V & Escalade Platinum
Cadillac’s Escalade-V and Platinum trims compete directly with the GLS AMG and Maybach in performance and luxury.
- Performance: The Escalade-V’s 6.2L supercharged V8 produces 682 hp, making it more powerful than the GLS 63 AMG. However, it’s heavier and slower (0-60 mph in 4.3 seconds) than the AMG’s 3.6-second sprint.
- Luxury & Features: The Escalade Platinum is packed with tech, but it lacks the handcrafted feel of the Maybach. The Cadillac’s curved OLED screen is impressive, but the GLS Maybach’s massaging, reclining seats feel more premium.
- Reliability & Maintenance: The Escalade’s pushrod V8 is simpler and more durable, making it a safer bet in the long run. However, Cadillac’s Super Cruise system isn’t as refined as Mercedes’ driver-assist tech.
Verdict: If you want brute power, the Escalade-V is the strongest competitor to the GLS AMG, but the Maybach’s luxury outshines the Escalade Platinum.
You can read more about Cadillac Escalade in our A Guide to Buying Used Cadillac Escalade: Evolution and Trims Explained blog
Range Rover Autobiography & SV
Land Rover’s Range Rover Autobiography and SV models are another alternative to the GLS Maybach.
- Performance: The latest Range Rover comes with a BMW-sourced 4.4L twin-turbo V8 (523 hp), making it powerful but not as fast as the GLS AMG.
- Luxury & Features: Range Rover’s SV trim is the closest rival to the GLS Maybach in terms of luxury. It features executive seating, a fridge, and ultra-premium materials, but Mercedes’ tech is more advanced.
- Reliability & Maintenance: Range Rovers are known for electrical and air suspension issues, making them riskier to own long-term compared to a well-maintained GLS.
Verdict: The Range Rover SV is the strongest luxury rival to the GLS Maybach, but Land Rover’s reliability is questionable.
Best Years to Buy a Used GLS Maybach or AMG
If you’re considering a pre-owned GLS AMG or GLS Maybach, here are the best model years to target:
- 2020-2021 GLS 63 AMG – These models feature the 4.0L twin-turbo V8 with EQ Boost and fewer early-generation glitches.
- 2021+ GLS 600 Maybach – The first year (2021) had some software quirks, but later models are refined and hold their value well.
- 2017-2019 AMG GLS 63 (Predecessor Model) – If you want a more affordable used AMG, the last generation (5.5L twin-turbo V8) is still a solid choice.
Why Buying a Used GLS Maybach or AMG Is a Smart Choice
A used GLS Maybach or AMG offers significant savings without sacrificing luxury or performance. New models can depreciate by up to 40% in the first three years, meaning you can get a well-maintained used one for a much better price.
- Luxury SUVs hold value, but depreciation hits new buyers the hardest.
- Buying used means avoiding the steepest drop in resale value.
- Certified pre-owned (CPO) programs offer warranties for added peace of mind.
Whether you’re looking for high-performance thrills with the GLS AMG or first-class comfort with the GLS Maybach, buying a pre-owned model gives you more value for your money.
Why Buy from AutoPro Nashville?
Finding the perfect used luxury SUV doesn’t have to be complicated. At AutoPro Nashville, we make it easy, offering a wide selection of high-quality pre-owned vehicles, including the Mercedes-Benz GLS Maybach and AMG models.
Experience Before You Buy
Not sure if the GLS Maybach or AMG is right for you? Take it for a test drive at our dealership in Brentwood, TN, and feel the difference for yourself.
Transparent & Reliable Purchases
We provide detailed vehicle history reports with every SUV, ensuring full transparency. No hidden surprises—just luxury cars you can trust.
Up to 5-Year Warranty & Financing
Enjoy peace of mind with our extended warranty options and flexible financing plans that fit your budget. We work with top lenders to get you the best deal.
Top Trade-In Offers
Looking to trade in your current vehicle? We offer competitive trade-in values, making it easy to upgrade to your next luxury ride.
Expert Maintenance & Repairs
Our certified technicians specialize in luxury vehicle servicing, ensuring your Mercedes-Benz GLS stays in top shape.
Nationwide Delivery Available
No matter where you are in the U.S., we’ll deliver your vehicle to your doorstep with our nationwide shipping service.
Visit AutoPro Nashville Today
Stop by 1610 Franklin Rd, Brentwood, TN 37027, or call 615-377-6101 to find your next luxury SUV. We’re open Monday-Saturday, 8:00 AM – 5:00 PM. Let’s get you behind the wheel!
Is the Mercedes-Benz GLS Maybach better than the GLS AMG?
It depends on your preference. The GLS Maybach is all about luxury and comfort, while the GLS AMG delivers high-performance and sportier handling.
What is the difference between the GLS 63 AMG and the GLS Maybach 600?
The GLS 63 AMG has a handcrafted twin-turbo V8 engine for extreme performance, while the GLS Maybach 600 focuses on ultra-premium comfort, with a smoother ride and executive rear seating.
What are the best years to buy a used GLS Maybach or AMG?
The 2021+ GLS Maybach 600 is a great pick for the latest tech, while the 2020+ GLS 63 AMG offers a balance of power and reliability.
How much does a used Mercedes-Benz GLS Maybach or AMG cost?
Prices vary based on year, mileage, and condition, but expect $60,000+ for AMG models and $90,000+ for a GLS Maybach in the used market.
How does the Mercedes GLS compare to competitors like the BMW X7 and Range Rover?
The GLS Maybach offers more luxury than the X7 and Range Rover, while the GLS AMG delivers better performance than most rivals.
