For the first time in its entire existence going back decades, the mighty Mercedes G-Class was completely redesigned in 2018, solidifying its reputation as one of the most capable and mean-looking off-roaders on the market. One year later, the regular G-Class was joined by its AMG-powered sibling, the AMG G63. Now, the high-performance SUV is getting a facelift.

For the first time, our spy photographers have spotted the updated G Wagon being tested at night in the snow. Two AMG 63 prototypes, both wrapped in camouflage, were seen with the usual bigger brakes and flared fenders indicating their AMG status.

Despite the extensive camouflage covering the front and rear, the styling changes appear to be minor. To freshen up the design, the AMG G63 facelift will most likely get a tweaked Panamerica grille and redesigned front and rear bumpers. The headlights and taillights look unchanged, but they could be redesigned in the next stage of development. One prototype is painted black while the other is finished in white, but new exterior color options may be available when the vehicle goes on sale.

Inside, we're expecting the facelift to be updated with the latest MBUX infotainment system and a new steering wheel design.

Curiously, our photographers noticed the dashboards inside the prototypes were covered up. This suggests Mercedes has something to hide, so there could be bigger changes inside the cabin than initially expected. As for engine options, the prototypes didn't have any hybrid stickers so the G63 won't be electrified for the time being. This means the current model's twin-turbo 4.0-liter V8 will carry over, paired with a nine-speed automatic transmission. With 577 hp on tap, it has ample amounts of power. A slight horsepower bump shouldn't be ruled out.

The Mercedes G-Class facelift is expected to arrive in late 2022 or early 2023. After that, the first fully electric Mercedes G-Class will go on sale in 2025, previewed by the Mercedes EQG Concept.