The Mercedes-Benz G 500 is a variant of the W463 Post-Facelift that debuted for the 2019 model year. The G500 was branded as the G550 - W463 Post-Facelift for the North American market. These SUVs are fitted with Mercedes' M176 DE40 AL engine, which is a 4.0L twin-turbo V8 that generates 416hp. This engine is paired to a 9 speed automatic transmission to send drive to all four wheels.