The new 2024 Mercedes‑Benz GLS models are available in a 375 horsepower GLS 450 4MATIC, a 510 horsepower GLS 580 4MATIC, a 550 horsepower Mercedes-Maybach GLS 600 and a 603 horsepower AMG 4.0L V8 Biturbo engine mated to the AMG SPEEDSHIFT® TCT 9G transmission comes in the Mercedes-AMG GLS63. The new 2024 GLS model range will arrive in U.S. dealerships later in 2023.