Ultra-lightweight type of the XB4 Gamma 4D human body is designed specifically for low traction conditions. Reduced weight decreases the roll the car and improves part rate. The profile from the human body improves the security and increases downforce towards the trunk of vehicle to help create more traction for the automobile. The high-performance, low-profile aerodynamic human body for XB4D is manufactured by XRAY to completely fit the automobile and work specially in low traction conditions. Specifically designed to maximise backside down force to improve traction. Front part was in fact built to provide optimal steering. The sides of human body and cockpit are because flat as you can to permit air to move throughout the human body for enhanced part stability. Along with roof are several built-in movement networks for appropriate airflow. Made from top-notch premium Lexan material. Fits XB4