We don’t often quote artists at Autocar, but “have no fear of perfection – you’ll never reach it”, the oft-paraphrased words of Salvador Dalí, seems as good a motto as any for owners of the Jaguar XJ40, an iconic British saloon whose problematic predisposition is central to its charm.
That’s not to say every XJ of this generation listed in the classifieds is a basket case: at the time of writing, you could buy a mint-condition 1989 car for £8000 or a very promising one-owner 1992 example for £10,995. But these are collectors’ cars, kept in garages and driven only on sunny days. If your used Jag budget is south of the £5000 mark, you’re looking at slightly less prestigious examples and would do well to exercise caution.
A big part of the XJ’s appeal is its range of engines: Jaguar offered a straight six from launch in 2.9-litre (XJ6) and 3.6-litre (Sovereign) forms. These were bored out to 3.2 litres and 4.0 litres respectively later on, with the coveted XJ12 6.0-litre V12 option joining the range in 1993, just a year before XJ40 production ended.
The largest six-cylinder unit is the most common these days and well regarded for its ability to get down the road. Certainly, its outputs of 246bhp and 289lb ft hold up well even today, being able to push the saloon from 0-62mph in 9.0sec and on to a top speed of 136mph.
The later XJ12 and Daimler Double Six models have twice the amount of cylinders to fill and thus are much costlier to run, but they run at such a lazy state of tune and are often driven carefully, so they could be the unexpected safe options here.
The rarer XJR – tuned by TWR, Jaguar’s then racing partner – is about as close as the XJ40 came to performance territory, packing hardcore suspension components and a tuned version of the larger straight six beneath its bodykit.