Grand Tourer

The Triumph Stag was a glamorous Michelotti-styled 2+2 convertible with a bespoke 3.0-litre V8, conceived to rival the Mercedes SL but undone by a notorious cooling problem. A guide to the engine saga and why it overheated, what a properly sorted car is like, what to look for when buying, and what they are worth now the reputation has been rehabilitated.

The XJS was never meant to be an E-Type, and the long, controversial grand tourer divided opinion at launch before time turned it into a sought-after classic. The V12 and the six, the cabriolet and the convertible, the TWR racing cars, and what to look for when buying one now.