The 2017 Mercedes-Benz GLS is part of the model's first generation, replacing the previously-named GL. It's a luxurious seven-passenger SUV offering three trims: GLS 450, GLS 550, and the high-performance AMG GLS 63. The broad engine range includes a 362-hp, 3.0-liter V6 biturbo (GLS 450), a 449-hp, 4.7-liter V8 biturbo (GLS 550), and a 577-hp, 5.5-liter V8 biturbo (AMG GLS 63), all paired with a 9-speed automatic transmission. Standard features comprise an 8-inch COMAND infotainment system with Apple CarPlay and Android Auto, while optional ACTIVE CURVE SYSTEM and optional Off-Road Engineering package signify its versatility. Notable safety features include ATTENTION ASSIST and standard nine airbags. For 2017, it received fresh exterior styling, updated interior, and new 9-speed automatic transmission for non-AMG models.