To celebrate the thirty-plus years of robustness, functionality, and outstanding off-road capabilities in G-Class, Mercedes-Benz introduced the new stretched version with six-wheel-drive system and portal axles.[24][25] G 63 AMG 6×6 was derived from a model developed specifically for the Australian Army in 2007. Despite the heavy weight and large dimension, G 63 AMG 6×6 could accelerate to 100 km/h in six seconds and reach a top speed of 160 km/h.