Automotive body kits are usually constructed of either fiberglass, polyurethane, or in some cases metal or carbon fiber.
Carbon fiber body kits are rarer, due to the cost of the materials.
Factory-fitted body kits are now becoming more common, perhaps in response to the growth of the aftermarket tuning industry in the late 1990s and onwards.
Many manufacturers now work in-house with their motorsport divisions to develop styling upgrades (such as HSV).
Examples of well-known body kit brands include Veilside, Mansory, Novitec Group, Hamann Motorsport, Liberty Walk and Rocket Bunny.