Sets of exterior modifications designed to enhance a vehicle's aesthetic appeal and, in some cases, improve aerodynamic performance. They typically include components like front and rear bumpers, side skirts, spoilers, and diffusers, which alter the vehicle's profile and create a more aggressive or customized look. Body kits can be made from various materials, including fiberglass, polyurethane, and carbon fiber, each offering different levels of durability and weight. They are popular among automotive enthusiasts looking to personalize their vehicles and create a unique appearance.