Jaguar Daimler Double Six Series III

Overview
Produced: 1979-1992, 41497 produced.
Types: Saloon,4 doors,5 seats

The final derivative of the XJ12 arrived in 1979, the XJ12 Series III. Like the XJ6 the XJ12 benefited from the clean-cut, new body designed by famed Italian design house, Pininfarina. The new body featured more glass, slightly squarer lines around the roof area, plus new front and rear end styling.

The XJ12 was still hampered by poor fuel consumption (13mpg at best) until the HE model arrived in 1981. The HE model (or High Efficiency) produced more power (299bhp) and could return slightly better fuel consumption figures of around 16mpg. The XJ12 Series III soldiered on until the late 1980's, outliving the XJ6 due to problems with installing the engine in the new XJ40 series.

 

Additional source of information advises that:  the V12 engine did not "soldier on to the late 80's". It was the flagship car in the Jaguar/Daimler line and was produced until the very end of 1992 (my own 1992 Series III model was sold new in May, 1993). The term "xj12" is also inaccurate as this is a base-trim model. The vast majority were the upscale V12 Sovereign or Double Six models, and for Canada only, the Jaguar V12 Vanden Plas, truly the king of the road.  Further fuel consumption on the highway is regularly as good as 25 miles to the Imperial gallon, as I have proved with more than a dozen of these beautiful cars.

 

Source: Motorbase
Engines
CapacityConfigModelBore/StrokeCR
5343ccS12 OHCJaguar V1290mm x 70mm9
Transmission
TypeGearsComment
Automatic3
Performance
Top Speed0-60SQMMPGEngine PwrComment
147 mph13 mpg285 bhp 5750
Brakes
FrontRearComment
DiscInboard disc
Auction Sales History
Lot
Num
Description Auctioneer Date Hammer Price Hammer Price
(inc premium)
44 Jaguar XJS-C BCA 19 Feb 2007 - £1250.00
148 Jaguar XJRS Barons 12 Dec 2006 Not sold
209 Jaguar XJRS Barons 10 Sep 2006 £1500.00 -
147 Jaguar XJRS 6.0 Barons 1 Aug 2006 £4300.00 -
015 1983 JAGUAR XJ12 HE H&H Sales Limited 27 Jul 2005 £3900.00 -
075 Jaguar XJ-S V12 (1933) Christies 16 Jun 2003 Not sold
036 Jaguar Sovereign 5.3 Avon Estate (1984) H&H Sales Limited 20 Feb 2002 - £5775.00
065 Jaguar XJS HE (1982) BCA 21 May 2001 Not sold
058 Jaguar XJ12L (1981) BCA 27 Nov 2000 Not sold
245 Jaguar XJ-S (1980) Cheffins 10 Apr 1999 Not sold
020 Jaguar XJS HE (1981) H&H Sales Limited 3 Jun 1998 Not sold
218 Jaguar XJS HE (1982) RTS Auctions Ltd 9 Mar 1997 £1600.00 -
045 Jaguar XJ-S 5.3 (1980) H&H Sales Limited 26 Feb 1997 £2100.00 -
349 Jaguar XJ12 Series III (1980) Brooks 8 May 1996 Not sold
023 Jaguar XJ-S V12 (1981) H&H Sales Limited 21 Sep 1995 £1800.00 -
Books
Magazine Articles
Title Pages Options
Article Our Cars
38 View
Publication Classic Cars September 2003
Our Cars - 1977 Porsche 911 Carrera 3.0-Litre-Phil Bell.  1985 Fiat 124 Spider-Ben Field.  1972 Fiat 130 Saloon-Martin Buckley.  1969 Triumph Vitesse, 1967 Jaguar 420-Malcolm McKay.
Article Technical Questions, Answers & Advice
42 View
Publication Jaguar Enthusiast June 2005
Technical Questions, Answers & Advice - Taken from the many queries our technical experts get from memebers, this month Dave Marks concerntrates on the XJ Series models 1,2 and 3.
Article Family cats
88 View
Publication Classic & Sports Car February 2003
Family cats - Jaguar rewrote the saloon car rulebook with the exceptional XJ6. Richard Heseltine tracks its evolution from Series 1 to the last but one XJ12 made.
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