XB4 Gamma 4D human body is made specially for low traction tracks. The profile associated with human body improves the stability and increases downforce towards a corner for the vehicle to simply help produce more traction for the automobile. The high-performance, low-profile aerodynamic human body for XB4D was made by XRAY to completely fit the automobile and work especially in low traction conditions. Particularly built to maximize rear down force to enhance traction. Front part wound up being designed to provide optimal steering. The sides about the human anatomy and cockpit are due to the fact flat as you can allowing air to move round the human anatomy for improved side protection. At the top of roof are two built-in motion stations for better airflow. Produced from top-notch premium Lexan product. Fits XB4