From July 1981 on, XJ-S got the new High-Efficiency engine for much better economy; as a by-product, power was increased to 220 kW (295 hp) or 196 kW (263 hp) in North America. ( Yes, better economy AND 295 hp!) Also the XJ-S received changes to its exterior and interior (new five-spoke alloy wheels, chrome inserts on the upper part of the bumpers, wood inserts on dashboard and door cappings). In 1982, the new V12 XJ-S won first and second at the RAC Tourist Trophy race at Silverstone.
Throughout the life of the XJS, British company Lynx sold a high-quality four-seat full convertible conversion. Lynx also produced 67 hand-built two-door estate/shooting brake/station wagon versions of the XJS marketed under the name of "Lynx Eventer". The Eventer was a very elegant model, which succeeded in the overall design because it removed the flying butresses, incorporating them into the estate design. Jaguar were urged to market their own version but never did. Most Eventers are believed to still exist although build quality, especially on the early versions, was at best variable. ( Strange looking, but still very cool)