The Articulator is based off of the Big Wheel platform but has undergone several performance enhancing upgrades. First of all, the Articulator has a highly extended suspension for extra all-terrain capability. It also has four high power gyros to keep the Articulator upright on any hill. Last of all, the Articulator's frame has been improved from the Big Wheel by adding extra support including the Vertical Articulators that allow it to have a fully articulating suspension that also helps the four gyros do their job. Please upvote.