2027 Mercedes-Benz GLS-Class spied with second update

Mercedes-Benz is working on an update for the GLS-Class, the second for the full-size SUV. The current GLS-Class arrived for the 2020 model year and was given a mild update for 2024. This second update, which will likely be introduced for the 2027 model year, will be more substantial, judging by the camouflage gear on a recently sighted prototype…