This is the 1986 Lister-Jaguar XJ-S Mk III.
Sitting fat.... the Lister Mk III was still very much a Jaguar XJ-S in appearance but it was so much more aggressive; the looks were matched by it's performance.
Most WP Automotive-built Lister-Jaguars were fitted with the Compomotive Turbo wheels. This photo from 1986/87 is showing stock Compomotive wheels, but in the years after Compomotive made wheels to Lister-spec with "Lister" on them. These are 16 inch diameter wheels, larger sizes were available from the late 1980s onwards.
Text: copyright Bram Corts