 In the 1970s and 1980s, Dutton Cars produced kit cars from their Worthing headquarters, and for a time was the largest manufacturer of kit cars in the world.The company went on to produce two models of amphibious car, that could be 'driven' across land and sea.International Automotive Design (IAD) was one of the UK's major design houses for cars, producing prototypes for manufacturers such as Mazda, including the first Mazda MX-5.