Mercedes offers a staggering array of powertrain options in the 2027 GLE, including four-, six-, and eight-cylinders, and two plug-in hybrid powertrains. A nine-speed automatic transmission and 4Matic all-wheel drive (AWD) are standard across the board.
The base GLE 350 4Matic (not available in the coupe body style) has a turbocharged 2.0-liter four-cylinder engine that produces 255 horsepower and 295 pound-feet of torque. The GLE 450 4Matic has a turbocharged 3.0-liter inline-six producing 375 hp and 413 lb-ft, and the GLE 580 4Matic (SUV-only) has a twin-turbo 4.0-liter V8 rated at 530 hp and 553 lb-ft. All three have a mild-hybrid system with a small electric motor that shares some of the workload under light throttle and makes the fuel-saving engine start/stop system more effective.
Mercedes tweaked these engines for 2027, including switching the V8 from a cross-plane crankshaft to a flat-plane crank. The latter is normally associated with high-revving performance, but here it’s mainly aimed at reducing emissions. The GLE 580’s V8 also boasts an extra 20 hp and 15 lb-ft. Peak torque for the inline-six increases by 44 lb-ft, and Mercedes claims increased responsiveness thanks to a new cylinder head and other changes. The base turbo-four gets an electric compressor like the bigger engines to keep its turbo spooled up at lower rpm, helping to prevent lag.
We only had the opportunity to drive the inline-six and V8 models, both of which impressed with their smooth power application and quick acceleration. The V8 was the real star, though. In the GLE, there's just enough power to make the driving experience special without descending into hooliganism. And when drivers aren't charging past a line of semi trucks, the V8’s relaxed demeanor is perfect for a luxury car. Mercedes even preserved the distinct burble of the previous cross-plane-crank engine.
The cars we drove had the optional air suspension system, which further added to the luxurious feel. Like the pre-facelift version, the 2027 GLE isn’t as sporty as its rivals from Acura, Audi, and BMW. The ride is nicely cushioned, but the chassis is slow to react when changing direction. The steering is equally languid, and the lack of feedback makes it hard to be precise with the wheel.
In addition to the core models, Mercedes offers the GLE 500e 4Matic plug-in hybrid for 2027. Available only in the SUV body style, it has an inline-six instead of the previous GLE plug-in hybrid’s four-cylinder engine, bringing the total system up to 429 hp and 502 lb-ft of torque, while a 25.3-kilowatt-hour (usable capacity) is a bit bigger than before. An EPA electric-range estimate was not available at the time of writing.
The AMG GLE 53 Hybrid takes that plug-in hybrid powertrain and turns it up to 577 hp and 553 lb-ft of torque, and gets an AMG-specific transmission, AWD system, AMG suspension, and AMG brakes. The AMG GLE 63 S tops the lineup with an upgraded version of the 4.0-liter twin-turbo V8 producing 603 hp and 627 lb-ft, along with its own chassis upgrades.