Jaguar XJS values: convertible over coupé, V12 over six, and why it is still the cheapest big Jaguar What a Jaguar XJS is worth, from 1,921 recorded auction sales. The median and the usual range, the convertible and V12 premiums, the run-out Celebration and the Lynx Eventer at the top, what rust and a V12's plumbing do to the price, and why the XJS is cheaper in real terms than it was twenty years ago.
