Mercedes-AMG has officially unveiled the facelifted versions of its high-performance SUVs. The new GLS 63 and GLE 63 S models mark a massive mid-cycle update. The changes focus heavily on a thoroughly revised V8 engine and aggressive exterior styling. These updates also bring upgraded interior technology to the table. AMG continues to put a strong emphasis on blending blistering performance with everyday practicality. These new revisions position the vehicles as compelling options in the luxury performance segment for the upcoming 2027 model year. Fans of the brand have been waiting eagerly for these updates. The results are truly mind-blowing.
For those who thought combustion engines were dead, Mercedes-AMG is proving everyone wrong. The brand has defied expectations by introducing a motorsport-derived flat-plane crank V8 engine into these massive family haulers. This decision has sent shockwaves through the automotive industry. It proves that the era of the high-revving V8 is far from over. Let us dive deep into what makes these new AMG SUVs the most exciting releases of the year.
The Shocking Truth About The New M177 EVO V8 Engine
At the very heart of both the new Mercedes-AMG GLS 63 4MATIC+ and GLE 63 S 4MATIC+ lies a mechanical masterpiece. Engineers have comprehensively updated the handcrafted 4.0-liter biturbo V8 engine. Known internally as the M177 EVO, it brings some serious heat to the streets. Peak output remains at 603 horsepower and 627 lb-ft of torque. However, the power delivery has completely changed. Mercedes-AMG re-engineered approximately 80 percent of the engine components. They did this to improve overall responsiveness and efficiency while meeting global emissions regulations.
The most crucial technical highlight is a new flat-plane crankshaft. This brilliant piece of engineering reduces rotating mass. The engine revs much more freely. It delivers incredibly quick throttle response. It gives the massive SUVs an eager character at higher rpm ranges. Additional modifications encompass a completely revised intake camshaft and an optimized fuel injection system. The engineers also updated the turbocharger hardware. This includes new compressor wheels and housings. New intake and exhaust ports work together with an enhanced exhaust aftertreatment system.
The engine pairs beautifully with a 48-volt mild-hybrid system featuring an Integrated Starter-Generator. This advanced ISG 2.0 setup can provide up to an additional 23 horsepower. This electric assistance is perfect for low-end pull. It provides seamless start-stop functionality in heavy traffic. Dynamic engine mounts further refine the noise, vibration, and harshness characteristics of the vehicle. All this massive power is routed through the AMG SPEEDSHIFT TCT 9G nine-speed automatic transmission. The fully variable AMG Performance 4MATIC+ all-wheel-drive system ensures maximum grip on any surface.
| Performance Metric | GLS 63 | GLE 63 S |
| Engine | 4.0L V8 Biturbo Flat-Plane | 4.0L V8 Biturbo Flat-Plane |
| Horsepower | 603 hp (+ 23 hp ISG) | 603 hp (+ 23 hp ISG) |
| Torque | 627 lb-ft | 627 lb-ft |
| 0-60 mph | 4.1 to 4.2 seconds | 3.7 to 3.9 seconds |
The agile GLE 63 S Coupe sprints to 60 mph in 3.7 to 3.9 seconds. The larger GLS 63 takes about 4.1 to 4.2 seconds. Top speed is electronically limited to 155 mph. A new valve-controlled exhaust system enhances the auditory experience dramatically. The flat-plane crank gives the exhaust note a high-pitched scream.
Exterior Redesign That Will Make You Drool Instantly
The 2027 facelifts bring evolutionary design changes to the exterior. These updates amplify the commanding road presence of both models. The high-performance SUVs feature heavily revised front fascias. They have much larger air intakes for improved engine cooling. You will immediately notice the prominent AMG-specific radiator grille. It now features illuminated elements for a futuristic look. The updated LED headlights incorporate a starry three-dot design, which acts as a stunning new light signature.
The GLS 63 serves as the full-size flagship. It emphasizes absolute grandeur with its upright proportions. On the other hand, the GLE 63 S adopts a much more dynamic and athletic stance. The GLE is available in both standard SUV and sleeker Coupe body styles to suit different tastes. Rear updates for both models include redesigned LED taillights and heavily revised bumpers. The prominent quad exhaust outlets leave a lasting impression as the vehicle speeds away.
Wheel options extend up to 23 inches in diameter. These massive wheels are paired with high-performance tires for maximum cornering grip. Aerodynamic enhancements improve high-speed stability and reduce wind noise. Customers can also choose exclusive MANUFAKTUR special editions to further personalize their SUV. These changes refine the existing X167 and W167 platforms perfectly.
Step Inside The Ultimate High-Tech Luxury Cabin
Cabin updates emphasize seamless digital integration and ultimate luxury. Both models boast incredibly high-resolution displays that span the dashboard. The setup includes a massive triple-screen configuration powered by the MBUX infotainment system. You get large panels for the driver, the central stack, and a dedicated screen for the front passenger. The system supports advanced voice control and augmented reality navigation. The MBUX Interior Assistant allows for intuitive gesture-based interactions while driving.
Seating is incredibly versatile. The GLS 63 offers comfortable space for up to seven adult passengers. The front seats feature multi-contour designs with advanced massage functions, ventilation, and rapid heating. Premium Nappa leather covers almost every single surface inside the opulent cabin. You can choose between beautiful open-pore wood, real carbon fiber, or glossy piano lacquer trims. New interior color combinations, like the stunning Bahia Brown and Black mix, elevate the luxury experience.
- Triple-screen MBUX layout with a dedicated passenger display.
- Multi-contour front seats with hot stone massage functionality.
- Premium Burmester 3D surround sound audio system.
- Advanced cabin air purification and custom fragrance options.
The Burmester surround sound system transforms the cabin into a private concert hall on wheels. The Air Balance fragrance and ionization package keeps the interior smelling fresh and clean at all times. A massive panoramic glass roof floods the cabin with natural light. Practicality remains a very strong selling point for these performance monsters. The GLS offers substantial cargo space. It boasts up to 84.7 cubic feet with the rear seats folded down flat. The GLE balances raw sportiness with excellent everyday usability for smaller families. Advanced driver assistance systems enhance safety and convenience on long road trips.
Chassis And Driving Dynamics That Defy Physics Completely
Mercedes-AMG equips both models with sophisticated chassis technology. The standard AMG ACTIVE RIDE CONTROL suspension utilizes advanced air springs with adaptive damping. This system promises excellent body control during aggressive cornering maneuvers. It also delivers supple ride comfort on broken city streets. The AMG DYNAMIC SELECT system offers multiple drive modes to suit your mood.
The three-stage Electronic Stability Program tailors power delivery. It keeps you safe or lets you have some fun on a track. High-performance composite brakes provide immensely strong stopping power. They bring these heavy beasts to a halt quickly. Optional ceramic brake upgrades are available from the factory. Braking duties is handled perfectly by this massive hardware setup.
The GLE 63 S feels noticeably more athletic. It is lighter and sits closer to the ground. It attacks corners with an enthusiasm that is hard to believe for an SUV. The steering is direct. The chassis communicates clearly with the driver at all times. The GLS 63 prioritizes effortless long-distance cruising. It is a family-hauling powerhouse that can still outrun most sports cars in a straight line. Sensors read road and chassis inputs up to 1000 times per second to keep the vehicle perfectly balanced. It have been proven that this suspension setup is top tier.
Pricing Details You Need To Know Before Buying Today
If you want to park one of these magnificent machines in your driveway, you need to be prepared. High-performance luxury SUVs like these do not come cheap. The 2027 updates have pushed the prices up slightly.
In the US market, the 2027 Mercedes-AMG GLS 63 is expected to start around $151,050 MSRP. The slightly smaller GLE 63 S SUV begins near $131,800 before you add any options. If you prefer the sloping roofline of the Coupe variant, you will be looking at a starting price of around $133,150. Pricing can vary significantly depending on the options you select. Dealership markups could also play a role when these highly anticipated models first arrive.
European figures are expected to be considerably higher due to local taxes and import duties. In Europe, prices will likely start well above €140,000 for the base models. Deliveries to eager customers are expected to begin later in 2026. If you are interested in acquiring one, contact your local dealer as soon as possible.
Mercedes-Benz continues to carefully balance its rich combustion-engine heritage with its future electrification plans. The significant refinements made to the V8 engine demonstrate a strong commitment to driving enthusiasts. Competitors like the BMW X5 M and the Porsche Cayenne Turbo will face extremely stiff rivalry. Both of these incredible vehicles exemplify the unique ability of Mercedes-AMG to evolve their icons without losing their core appeal. Make sure you start saving up now, because these beasts are going to sell out fast.
