Background
Thought by many to be the last of the ‘proper’ Jaguars built prior to Ford taking the reins, the XJ6 S3 was also the final iteration of the XJ triumvirate.
Introduced in 1979 after being tickled by Pininfarina with injection-moulded bumpers, flush door handles, and a revised roofline, the Series 3 was offered with a choice of engines from the basic 3.4-litre straight-six all the way to the thumping 5.3-litre V12.
For many though the 4.2-litre you see here was the sweet spot in the range, offering towering performance alongside decent fuel consumption – well, compared to the V12, anyway.
Like the V12, it features Bosch fuel-injection for even creamier running, leading the legendary LJK Setright to say of it in CAR magazine: “In 4.2-litre form it offers at least as much performance as any of its direct competitors; it throws in supreme handling and silence, excellent breaking and comfort and all at the usual shattering Jaguar price.”
And he wasn’t finished there: “it renders superfluous all cars that cost more … [and] is probably the best this nation can offer and certainly amongst the best any nation has known in 75 years.”
The six-cylinder variants remained in production until the arrival of the XJ40 in 1987, whilst the V12 plodded on until 1992 because Ford never did find a shoehorn big enough to lever it into the XJ40’s engine bay.








