The wing under shield, known also as the inner wing guard, is an arched plastic component fitted just above each wheel. It protects the car body from potential damage caused by rocks and flying debris, and from cumulative rust damage as a result of exposure to mud and water. The engine tray is fitted directly beneath the engine and also fulfils the purpose of providing protection from impact and the elements. Additionally, it assists with aerodynamics and helps to dampen engine noise. Broken engine trays should be replaced to protect your engine from damage and to improve the comfort of your ride.