TheMercedes-Benz GLS, formerlyMercedes-Benz GL-Class, is afull-sizeluxury crossover SUV produced byMercedes-Benz since 2006. In each of its generations it is a three-row, seven-passenger vehicle positioned above theGLE (formerly Mercedes-Benz M-Class before 2016).^[4] The GLS is considered the flagship of the marque's SUV lineup, although thebody-on-frameG-Class (originally intended formilitary off-roading but also offered in luxurious trims) is more expensive and has been in production longer.

Mercedes-Benz GLS
Overview
Manufacturer	DaimlerChrysler (2006–2007) Daimler AG (2007–2022) Mercedes-Benz Group (2022–present)
Production	2006–2015 (GL-Class) 2015–present (GLS)
Body and chassis
Class	Full-sizeluxury crossover SUV[1][2][3]
Layout	Front-engine, four-wheel drive (4Matic)
Related	Mercedes-Benz ML-Class/GLE

The GLS shares the sameunibody architecture with the GLE. Most GLS vehicles are assembled at the Mercedes plant in Alabama, except for a small number of early 2007 production vehicles which were manufactured in Germany. The first generation model (X164) was manufactured between 2006 and 2012 and was replaced in 2013 by the new generation GL-Class (X166).

From 2016 with the release of the facelifted second generation model, the GL-Class was renamed toGLS as per the revised nomenclature adopted by Mercedes. Under this scheme, SUVs use the base name "GL", followed by the model's placement in Mercedes-Benz hierarchy. The "G" is forgeländewagen (German foroff-road vehicle) and alludes the long-runningG-Class. This is followed by the letter "L" that acts as a linkage with the letter "S", the SUV equivalent to theS-Class, marketing the GLS as the corresponding SUV to the S-Class full-size sedan.^[5][6]

The X164 GL-Class debuted at the2006 North American International Auto Show. It was released around the same time as the similarly sizedAudi Q7, and was the first full-size, 7-seaterSUV produced by a German automaker. The range of engines consist of V8 petrol engines, andturbocharged V6 and V8 diesel engines. All models are available only in all-wheel drive (4MATIC) configuration.

The X166 GL-Class went on sale in September 2012.^[4] Models feature efficiency improvements via the addition of anengine start stop system,drive by wire steering, and newturbocharged petrol and diesel engines. The second generation model also introduced a high performance GL63 AMG variant, powered by the hand-builtM157 engine.^[7] Following a 2016 facelift it was renamed theGLS, to correspond with the new Mercedes-Benz naming scheme. The model update also featured minor exterior and interior design changes and performance improvements.^[8]

The third generation model debuted at the2019 New York International Auto Show. The engine options at the launch are 3.0-litre turbo inline six (GLS 450 4MATIC) and 4.0-litre twin-turbo V8 (GLS 580 4MATIC & AMG GLS 63), both petrol with EQ Boost electric motors, and 2.9-litre twin-turbo diesel inline six in two different outputs (GLS 350 d 4MATIC and GLS 450 d 4MATIC).^[9][10] A first SUV version of Mercedes-Maybach, Mercedes-Maybach GLS 600 4MATIC model was released in late 2019.

The wheelbase is 2.3 inches longer and nearly an inch wider. It uses the same architecture as the latest GLE with MBUX and dual 12.3-inch screens as well as E-Active Body Control and car-to-X communication. The exterior has also been redesigned with sleeker headlamps and taillamps.^[11]

• Official website