The Mercedes-Benz GLS 550 is a performance luxury SUV that was produced by the German automaker Mercedes-Benz between 2013 and 2020. It is the top of the line version of the GLS-Class and is powered by a 4.7L twin-turbocharged V8 engine. The GLS 550 has a 7-speed automatic transmission, air suspension, and all-wheel drive. It also has a suite of advanced safety and convenience features, such as adaptive cruise control, a blind spot monitoring system, and an intelligent navigation system.