Jaguar XJ12, XJS & Sovereign; Daimler Double Six (72 - 88) Haynes Repair ManualJaguar XJ12, XJS & Sovereign; Daimler Double Six (72 88) Haynes Repair Manual covers the XJ12 and Sovereign, as well as the Daimler Double Six, including Vanden Plas, from Series 1, 2, and 3 (1972 1988, up to F). The manual also includes the XJS, including the XJSC (Cabriolet) models, from 1975 1985, up to C. This guide focuses on petrol engines, specifically the 5. 3 litre (5343cc) V12 engine. Note: This manual does not cover the E type or the XJS