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2025 Mercedes-Benz G550 Swaps V-8 for Turbo Six with More HP, Less Torque

2025 mercedes benz g550
Updated G550 Trades V-8 for Turbo Six with More HPMercedes-Benz
  • The 2025 Mercedes-Benz G-class is refreshed with better aerodynamics that pave the way for the anticipated electric variant.

  • The G550 trades its old 416-hp V-8 for a new 443-hp turbo six, while the AMG-tuned G63 retains its 577-hp V-8 but adopts a 48-volt hybrid system.

  • For 2025, both G-wagen models also gain new off-road tech, more desirable features, and expanded personalization options.

The terrain-and-tarmac-conquering Mercedes G-class is being updated for the 2025 model year with—get this–aerodynamics in mind. Don't worry, the G hasn't evolved into some rounded blob-shaped crossover. It remains distinctly boxy, casting a shadow similar to the original 1979 Geländewagen.

The restyling is subtle but includes reshaped A-pillars, an updated grille, redesigned front and rear bumpers, and a subtle spoiler on the leading edge of the G-class's roof. These changes apply to the Benz-branded G550 and the AMG-tuned G63. More importantly, they're also expected to appear on an upcoming electric G-class model.

2025 mercedes benz g550
Mercedes-Benz

G-Wagens Get a 48V Hybrid System

Along with a more aerodynamically enhanced body, both G-class models adopt a new 48-volt hybrid system. That means the G550 no longer features a 416-hp twin-turbo 4.0-liter V-8, as that's been replaced by a turbocharged 3.0-liter straight-six that's good for 443 horsepower and 413 pound-feet of torque. That represents an increase of 27 horses but a decrease of 37 pound-feet versus the outgoing engine. Meanwhile, the G63 retains its predecessor's twin-turbo V-8, which still makes 577 ponies and 627 pound-feet, but now pairs with the aforementioned 48-volt system.

The G63 is also now available with an adaptive suspension system. Called AMG Active Ride Control, it uses hydraulic anti-roll bars and dampers to reduce body roll during hard cornering. Plus, Mercedes claims it improves ride comfort by softening up during normal driving. The system is included with the AMG Offroad Package Pro, as the new suspension is designed to improve wheel articulation on uneven surfaces.

2025 mercedes amg g63
Mercedes-AMG

The AMG Offroad Package Pro bundle also adds two new drive modes: AMG Tracking Pro and AMG Active Balance Control. The former uses the G63's braking system and locking differential to improve traction, while the latter uses the suspension's hydraulic system to let the driver manually select the proper roll stiffness on the fly to help improve control in off-road scenarios.

Better Tech across the Board

Both G-wagens now feature more off-road tech in the cabin too, including a special set of gauges that can be called up on the infotainment system to provide details such as steering angle, altitude, and vehicle position. An updated 360-degree camera system can now display a view of what's under the G-class. Mercedes calls this feature "Transparent Hood," and it gives drivers a better idea of the terrain directly beneath the SUV.

2025 mercedes amg g63 interior
Mercedes-AMG

For those planning to use the updated G-class models in a more suburban setting, Mercedes has several new convenience and comfort features for the cabin. The G550 and G63 now come with Mercedes's MBUX infotainment interface, which brings wireless Apple CarPlay and Android Auto.

Climate-controlled front cupholders and a wireless charging pad are now included too, and a revised rear-seat entertainment system is optional. The latter setup features two 11.6-inch touchscreens mounted to the front seatbacks, which allow rear-seat passengers to browse the web, stream video content, and control the SUV's sound system.

2025 mercedes benz g550
Mercedes-Benz

Driver-assistance features get a boost for 2025 too. A new adaptive cruise control with a lane-centering feature is available on the G-class for the first time. The system can also increase and decrease the vehicle's speed to prepare for corners or highway exit ramps when used in conjunction with the navigation system.

All models now come standard with passive entry and a Burmester surround-sound stereo. A dashcam finds its way onto the options sheet as well, and Mercedes has expanded its personalization offerings through its Manufaktur customization service. Manufaktur provides a selection of unique paint colors, interior trims, upholstery options, and rear wheel covers that can be combined to spec a G-class to an individual buyer's taste.

2025 mercedes amg g63
Mercedes-AMG

Production of the updated G will start soon. Mercedes says the '25 G550 and G63 will reach U.S. dealerships in the second half of this year. Pricing hasn't yet been announced, but we expect the price of both models to receive a slight increase. The 2024 G550 starts at $144,150, and the '24 G63 starts at $184,150, so no matter how you slice it, the 2025 model will require very deep pockets.

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