Gerry Johnson and Brian Cook founded the company JC Composites in 1983 in Kingstone , Herefordshire . They started with the production of automobiles and kits . The brand name was Wyvern . 1985 ended production. Hawk Associates from Hereford in Herefordshire continued production until 1986, maintaining the brand name. In total, about 105 copies were made.
On offer was a model with a chassis made of steel. On it a body made of fiberglass the open 1930s-style vehicle accommodated 2 + 2 people. Engines of the Vauxhall Viva with 1256 cc, 1599 cc, 1759 cc, 1975 cc or 2279 cc displacement as well as Ford were available. The original price for a kit was £1,660 .