XRAY have introduced the new Alpha ultra-lightweight body for the XB4. The low-profile Alpha body is completely redesigned to provide high-performance and super-smooth airflow and all-new downforce areas. The Alpha body gives increased steering and stability while also improving handling in jumps. It lower weight reduces the roll of the car and improves rotation in corners. The front part of the body has a new high-downforce area while the sides of the body have upper downforce areas to generate more mid-body downforce, and the straight sidewalls improve stability. The upper part of the body was redesigned with a smooth flow channel.