 Originally applied to tuned Elans and Lotus Cortinas, the term "Special Equipment" was later used by Lotus to designate those Series 2 and later Elans with higher output motors, and are referred to as Elan S/Es.In 1968 Sanville began building a series of Twin Cams using a new camshaft called the Super Special Equipment cam, or D-Type, that was based on the Coventry Climax FWA 3060 cam.Heads used in SSE engines were shaved by , boosting the compression ration to 10.3