If the ESC would be the brains of the truck, the Motor would be the heart , and the Chassis would be the Bones of the Rig! Solid support for all the components to work from. Suspension and Wheel systems attach to the outside of the Chassis, while the Body houses the Steering components, Motor, and ESC/Receiver. Designed to centralize the most weight to the middle of the truck, house the ESC above any wet grass or leaves while still allowing good air flow for cooling the ESC and Motor. It is designed with the user in mind for easy repairs.