Mercedes-Benz has given its midsize GLE SUV yet another comprehensive facelift for the 2027 model year, touching nearly every corner of the vehicle’s extensive lineup. Following a broad round of updates applied to the standard seven-year-old model architecture, the high-performance arm of the German automaker has turned its attention to electrification. The result is the newly designated 2027 Mercedes-AMG GLE53 PHEV, a plug-in hybrid variant that brings a substantial injection of electrified muscle to an already established performance formula.
Available in both traditional SUV and sloped-roof coupe body styles, the new plug-in hybrid starts at $98,400 for the standard SUV and $99,450 for the coupe, with destination charges included. While that commands a significant financial investment, the GLE53 PHEV delivers a remarkably versatile package. It is engineered to function flexibly as a zero-emission electric vehicle capable of traveling dozens of miles on a single charge, an efficient hybrid family cruiser for daily commuting, or a sharp, aggressive machine suited for spirited driving on winding mountain passes.
Wait, Don’t We Dislike Mercedes-AMG’s PHEV Performance Cars?
Automotive enthusiasts have not always looked favorably upon Mercedes-AMG’s recent integration of plug-in hybrid technology. The transition of the high-performance C63 S E-Performance to a heavily electrified four-cylinder powertrain, for instance, drew widespread criticism and lamentation over the loss of its predecessor’s brutish twin-turbocharged V8 engine. However, the engineering strategy behind the GLE53 takes a fundamentally different path by building upon an engine that enthusiasts already universally praise: Mercedes-AMG’s characterful turbocharged 3.0-liter inline-six.
In the outgoing model, the GLE53 relied on an AMG-enhanced version of this inline-six engine. For the 2027 model year, the new PHEV powertrain pairs that same basic powerplant with a powerful 181-horsepower electric motor and a substantial 25.3-kWh nickel manganese cobalt battery pack. This hybridization yields an immense performance boost over the previous non-plug-in variant, generating an additional 148 horsepower and 140 lb-ft of torque.
Total combined system output reaches an impressive 577 horsepower and 553 lb-ft of torque. This puts the GLE53 PHEV uncomfortably close to the traditional, V8-powered GLE63 S, which produces 603 prodigious ponies.
All of that extra output translates directly to the stopwatch. The GLE53 PHEV completes the 0-to-60-mph sprint in a blistering 4.1 seconds, shaving a full 0.8 seconds off the time posted by the previous year’s model. This performance improvement is achieved despite a massive weight penalty brought on by the high-voltage hardware. The SUV version gains a staggering 827 pounds, bringing its total curb weight to a hefty 6,107 pounds. The sleeker GLE53 Coupe manages to shed a minor 44 pounds by comparison, registering at 6,063 pounds according to manufacturer specifications.
While official, EPA-verified fuel economy numbers remain pending, real-world testing yields promising efficiency indicators. During spirited driving across demanding, high-altitude mountain roads in Colorado, the vehicle averaged 30 mpg, suggesting significant gains over the outgoing GLE53’s city and highway ratings of 18 mpg and 23 mpg, respectively.
Furthermore, the EPA has rated the vehicle’s all-electric range with a usable estimate of 45 miles on a single charge. In real-world conditions with a nearly full battery, the test vehicle indicated an even more generous 50-mile electric range that proved remarkably accurate during operation. The vehicle can travel at speeds up to 87 mph in pure electric mode and supports 60-kW DC fast-charging via a CCS charge port—opting against the North American Charging Standard—allowing the battery to replenish from 10% to 80% capacity in approximately 20 minutes.
It’s a Great Powertrain, and Much Livelier Than the GLE500e’s PHEV Powertrain
Equipped with 22-inch wheels, the GLE53 Coupe test vehicle demonstrated the impressive capability of the freshly tuned AMG Ride Control+ air suspension. While smaller stablemates like the Mercedes-AMG GLC53 have previously drawn criticism for a ride quality that remains overly firm, the GLE53 successfully avoids this pitfall. In Comfort mode, the air suspension delivers a genuinely plush ride that does not feel noticeably stiffer than a standard, non-AMG GLE variant.
Twisting the steering-wheel-mounted drive mode selector into Sport or Sport+ instantly alters the vehicle’s demeanor. The suspension firms up considerably, and the inline-six engine wakes up with a rowdy yet refined personality. The transition between electric power and internal combustion remains remarkably seamless, with consistent throttle inputs that prevent the hybrid system from ever feeling disjointed or separate from a traditional gasoline-powered powertrain.
Inside the cabin, the smooth wail of the turbocharged six-cylinder engine is accompanied by convincing artificial sound enhancement that leans toward a deep, V8-like baritone. Standing outside the vehicle while an engineer revs the engine reveals a distinct acoustic reality: the car emits the smooth, symphonic signature of a straight-six, complete with subtle, authentic pops and burbles. Though this creates a slight acoustic dissonance between the interior and exterior experience, the overall auditory feedback remains deeply satisfying.
Efficiency remains a core pillar of the design, despite the vehicle’s aggressive capabilities. Drivers can select from an array of drive modes, including Slippery, Comfort, Sport, Sport+, Trail, and Individual. Specialized PHEV functions such as Electric and Battery Hold are also included.
While the vehicle automatically initializes in Electric mode upon startup—a default setting that may not appeal to every driver—the physical drive-mode dial on the steering wheel makes transitioning into Comfort or Sport effortless. Ultimately, the plug-in hybrid powertrain that felt somewhat benign in the standard GLE500e takes on a markedly sportier character in the GLE53, striking a successful balance between daily efficiency and high-end performance.
The Standard GLE Drives Well, and AMG Takes That to the Next Level
The standard GLE lineup already demonstrates impressive driving dynamics, particularly in the top-tier GLE580 trim featuring its flat-plane-crank V8 engine. That model delivers surprising athleticism when pushed through winding mountain roads. The GLE53 Coupe follows suit, feeling eager and agile as it navigates tight corners amid autumnal mountain landscapes.
However, the laws of physics cannot be entirely rewritten. Through tighter, more technical turns, the substantial weight of the onboard PHEV battery pack is distinctly palpable, even though the sharpened steering system provides reassuring feedback and accurate placement.
This noticeable heft introduces some compromises, particularly when paired with the optional Multicontour seats. Despite being dialed up to their maximum setting, the seats lack sufficient lower adjustment ranges and lateral bolstering to properly contain occupants against the high lateral G-forces generated by an AMG-badged performance machine.
The 2027 model year also introduces launch control to the GLE line for the very first time. Engaging the feature requires turning the drive mode selector to Sport+, holding the brake pedal, and flooring the accelerator. True to AMG tradition, the vehicle responds by automatically tightening the seatbelts to signal its readiness to accelerate. Releasing the brake delivers a powerful initial launch, heavily amplified by the electric motor, though the intensity of acceleration tapers off slightly as vehicle speed builds. While the straight-line speed is more than respectable, the dramatic initial launch sets expectations for an explosive mid-range pull that ultimately plateaus.
The GLE53 Coupe driven during testing weighed 584 pounds more than the V8-powered GLE580. Interestingly, independent testing notes that the GLE580 is estimated to be just 0.1 seconds slower to 60 mph than the heavier GLE53. That standard V8 model handles its weight so adeptly that it occasionally makes this specialized AMG variant feel somewhat redundant. Yet, the GLE53 delivers a much more aggressive visual and auditory attitude than the standard GLE580, paving the way for the even more extreme GLE63 S.
Aggression Is the Name of the Game Here, But It Gets the Same Demerits as the Regular GLE
Entering its seventh model year, the current generation of the GLE platform retains a few long-standing interior criticisms. The updated cabin prominently features Mercedes’ polarizing stopgap Superscreen dashboard layout, which combines three distinct display screens with vast stretches of glossy black plastic bezels. Furthermore, the test vehicle exhibited the same budget-oriented vinyl sun visors and hard plastic lower door cards that have drawn criticism across the broader GLE lineup, alongside a continued lack of convenient storage space within the front cabin.
The more aggressive exterior styling, racy exhaust notes, and spicier engine performance undoubtedly inject a higher level of excitement into the GLE53 compared to its conventional siblings. For buyers searching for an aggressive road presence without fully committing to the uncompromising nature of the flagship GLE63, or for those who desire heavy V8-rivaling performance without enduring V8 fuel economy penalties, the GLE53 PHEV offers a compelling middle ground within the expansive Mercedes-Benz ecosystem.