Given the model code XJ81, the XJ40-based XJ12 and Daimler Double Six were introduced at the Amsterdam Auto Show in February 1993 and powered by a 6.0-litre version of the Jaguar V12 engine. This was mated to a GM 4L80E 4-speed automatic gearbox. It could be identified by the XJ12 or Double Six badge on the rear and a V12 emblem on the glovebox. The XJ12 used the two twin-headlamp pairs, black radiator grille vanes, and a gold growler badge on the radiator grille top, while the Daimler received the rectangular headlamps. Early cars used stainless steel window frames, on later cars they were changed to black.