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

• 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.

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 That means the G550 no longer features a 416-hp twin-turbo 4.0-liter V-8, as that's been replaced by a turbocharged 3.0-liter straight-six that's good for 443 horsepower and 413 pound-feet of torque.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.

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