Mercedes-AMG GLS 63 gets bigger power, revised styling and active exhaust for the 2027 model. It’s equipped with the M177 4.0L V8 engine with twin turbochargers, a flat-plane crankshaft and 603 hp. The 0 to 60 mph acceleration run is dispatched in 3.9 seconds, which isn’t bad for a heavy SUV, and the top speed sits around the 174 electronically limited mark.
