XB4 Gamma 4D human anatomy is created particularly for low traction tracks. The profile related to body improves the stability and increases downforce towards a large part the automobile to greatly help produce more traction the car. The high-performance, low-profile aerodynamic body for XB4D had been created by XRAY to completely fit the automobile and work especially in low traction conditions. Specially created to maximize rear down force to boost traction. Front component ended up being designed to provide optimal steering. The sides in regards to the body and cockpit are because of the fact flat as you can allowing air to move around the human anatomy for improved part security. Near the top of roof are a couple of built-in motion stations for better airflow. Made out of top-notch premium Lexan item. Fits XB4