The Jaguar XJ-S was built from 1975-96 and was the most affordable mass-produced V-12 sports car ever built. But owners constantly balanced enjoyment and aggravation, which has depressed prices to bargain levels. Stiffer emissions and safety regulations demanded a new kind of Jaguar sports car in the 1970s.

A: The average price of a Jaguar XJS is $14,265. Have another FAQ about the Jaguar XJS? Let us know. .

The V12 powered all three series of the original Jaguar XJ luxury saloons, as well as its second generation XJ40 and X305 successors.

More importantly, its Department of Energy fuel consumption figures are stated as 27.1 m.p.g. at 56 m.p.h., 22.5 m.p.g. at 75 m.p.h. and 15.6 m.p.g. for the urban cycle. The introduction of this revised V12 engine coincides with a major quality and reliability campaign instigated by Jaguar Cars Ltd.