- The Mercedes-Benz GLS-Class range is expected to be updated for 2027 model year
- An AMG GLS 63 prototype is out testing with light camouflage gear only
- A new electrified V-8 engine is possible for the updated GLS 63
Mercedes-Benz is working on an update for the GLS-Class, and the latest prototype to be spotted is for the fiery AMG GLS 63 model.
Earlier shots show prototypes for updated versions of the regular GLS-Class and ultra-luxury Maybach GLS-Class.
The current GLS-Class arrived for the 2020 model year and was given an update for 2024; the latest prototypes are for a second update for the full-size SUV. This second update, which will likely be introduced for the 2027 model year in the U.S., is expected to be more substantial than the somewhat mild previous update.
The camouflage gear points new lights at both ends, which incorporate tiny Mercedes star logos. There are also new fascias at both ends, and a revised grille up front. Non-visible elements like chassis and powertrain systems may also be new, though.
2027 Mercedes-Benz AMG GLS 63 facelift spy shots – Photo via Baldauf
It isn’t clear what Mercedes has planned for the mechanical components, but a new electrified V-8 confirmed by Mercedes earlier in February may be added. The engine is expected to feature mild-hybrid technology and possibly even a flat-plane crankshaft, and is tipped to debut later this year in a CLE 63 from AMG.
The GLS 63 is currently offered with a twin-turbocharged 4.0-liter V-8 rated at 603 hp. This engine also works together with a 48-volt mild-hybrid system and drives all four wheels via a 9-speed automatic transmission.
In the regular GLS-Class, it’s possible the available V-8 gets dropped, just like the updated 2025 G-Class which only offers a V-8 in AMG G 63 guise.
2027 Mercedes-Benz AMG GLS 63 facelift spy shots – Photo via Baldauf
Mercedes doesn’t normally update its vehicles more than once during a traditional product cycle which lasts 7-8 years, but a second update for the GLS-Class suggests the SUV will stick around longer than that. This move is in response to Mercedes extending the sales timeline for some of its current gas-powered vehicles beyond what was initially planned.
The decision comes as demand for electric vehicles has been slower than anticipated. Although Mercedes aimed to transition entirely to electric vehicles by 2030, the automaker announced a year ago that it will continue selling gas-powered models beyond that deadline.
A second facelift is also planned for the GLE-Class range, prototypes for which are also out testing.
