Manufacture of motor vehicles, trailers and semi-trailers Standard Industrial Classification (SIC) codes of UK-based importers and exporters 29100 - Manufacture of motor vehicles (1796) 29201 - Manufacture of bodies (coachwork) for motor vehicles (except caravans) (1322) 29202 - Manufacture of trailers and semi-trailers (372) 29203 - Manufacture of caravans (443) 29310 - Manufacture of electrical and electronic equipment for motor vehicles and their engines (958) 29320 - Manufacture of other parts and accessories for motor vehicles (3522)