Facts on the Classic Jaguar XJ6 Series III

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Facts on the Classic Jaguar XJ6 Series III
Jaguars are the classic luxury sports car of Britain. (jaguar image by stephy from Fotolia.com)

British Leyland introduced the Jaguar XJ6 III into the market in 1979 to inject modern styling and performance into its vehicles. Company founder Sir William Lyons' final design improved the reliability of the brand while maintaining its sleek prestige.

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First made in 1979 for the 1980 inventory, the Jaguar XJ6 III is a four-door, hardtop sedan that replaced the outmoded models 340, 420 and 420G. The sleek classic Jaguar coupe body and interior was given a lift by Carrozzeria Pininfarina, an Italian style firm, the first vendor to contribute to the Jaguar design; it also contained increased headroom in the back seat, moulded handles and plastic fenders.


The XJ6 Series III 4.2-litre engine was tested in the factory every hour. The reinforced cast-iron block with aluminium head and additional cooling components have contributed to the long road term success. The classic Jaguar engine horsepower is 176 at 4,750rpm, it has a three-speed gearbox, and top speed reached is 116mph.


The classic Jaguar XJ6 Series III carried a Borg-Warner model 66 automatic gearbox. The gear ratios started in 1979 at 2.40:1 for the first, 1.45:1 for the second and 1:1 for the third.

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