Mercedes-Benz is preparing a major refresh for its flagship GLS-Class SUV lineup, with the 2027 AMG GLS 63 prototype recently spotted in light camouflage. This signals more than just a cosmetic update—it’s a clear indication that Mercedes is doubling down on keeping its full-size luxury SUV competitive in an evolving market dominated by electrification and high-performance expectations.
A Second Facelift—Why Now?
Originally introduced for the 2020 model year, the current GLS-Class received a minor update for 2024. But this new update for 2027 is shaping up to be far more substantial. Spotted prototypes hint at reworked front and rear fascias, redesigned lighting elements, and a subtly refreshed grille that aligns with Mercedes’ modern design direction.
This is unusual in the automotive world—most models only get one mid-cycle refresh during a typical 7- to 8-year product lifespan. So why is Mercedes investing in a second facelift? The answer likely lies in the brand’s strategic shift toward electrification, paired with a need to extend the life of its combustion-engine flagships amid slower-than-anticipated EV adoption.
Electrified Powertrain on the Horizon
One of the most exciting potential upgrades is under the hood. Reports suggest that Mercedes-AMG could introduce an electrified V8 powertrain in the next-gen GLS 63, similar to what’s expected in the upcoming CLE 63. This would likely include 48-volt mild-hybrid technology, offering both enhanced efficiency and improved performance—an increasingly vital formula for high-end buyers looking to balance power with eco-consciousness.
The current GLS 63 already delivers formidable output with its twin-turbocharged 4.0-liter V8, which produces 603 horsepower and is paired with a 9-speed automatic transmission and all-wheel drive. Integrating hybrid enhancements could push this further while improving fuel economy—something buyers in this segment now expect.
The Fate of the Standard GLS-Class
There’s growing speculation that Mercedes may follow the trend it set with the G-Class by phasing out non-AMG V8 options in the standard GLS lineup. This move would allow the automaker to streamline its offerings and focus on performance hybrids and electric variants moving forward.
With brands like Mercedes adjusting their timelines for going fully electric by 2030, a transitional phase of hybrid-powered SUVs like the GLS 63 makes strategic sense—especially for markets where infrastructure for EVs remains inconsistent.
What This Means for Buyers
The upcoming GLS-Class update represents more than just visual tweaks—it’s Mercedes-Benz recalibrating its strategy in a shifting automotive landscape. By keeping its flagship SUV relevant through performance enhancements, hybrid tech, and design updates, the brand is extending the legacy of luxury combustion vehicles while preparing for a more electrified future.
For luxury SUV enthusiasts who value both traditional performance and cutting-edge technology, the 2027 Mercedes-AMG GLS 63 is shaping up to be a compelling blend of power, refinement, and future-focused innovation.
Key Takeaways:
- The 2027 Mercedes-AMG GLS 63 will receive extensive design and powertrain updates.
- Expect mild-hybrid V8 technology and refreshed front/rear styling.
- Mercedes is extending the lifecycle of gas-powered models amid slower EV market shifts.
- This facelift underscores the brand’s focus on performance, sustainability, and design continuity.
Image Source: DiPres / Shutterstock
