Background
Jaguar's 5.3-litre V12 engine was available in the XJ range from 1972 onwards. For the Daimler version the Double-Six name was dusted off and given a new lease of life. The name had been used by the company from 1926 to 1938 and when FRW (Lofty) England took over as Chairman from Sir William Lyons, his memory of taking second place in a Daimler Double-Six in first ever RAC rally prompted him to decree that, henceforth, all new V12 Daimlers would have the Double-Six moniker.
The V12 Daimler had the same radiator grill as its six-cylinder sibling, with only external badging to distinguish them. The Double-Six evolved in step with the Jaguar Sovereign from Series I to Series III, and the Double-Six name remained with Daimler throughout Series III production, which ended in 1992.
In late 1972, the lavishly equipped Double-Six Vanden Plas appeared. It had a slightly longer wheelbase and a black vinyl roof.
A particularly rakish two-door coupé was offered in the Double-Six Series II range from 1975 to 1977.
When Jaguar re-engineered the XJ40, the Series III’s successor, to take a 6.0-litre version of the V12 engine, a new Double-Six was also produced. It was manufactured from 1993 to 1994 when, along with the other XJ models, it was given a facelift under the X305 designation and continued to be produced until the V12 engine was changed for a V8 in 1997.







