[Arragonis]

Originally Posted by rainagain

how about PSA/Ford’s new 206PS 2.7 litre twin-turbo diesel V6, the choice of Jaguar themselves for the S-type:

Jaguar S-Type V6 Diesel | Road Tests | Honest John

Or indeed the superior 2.2 4cyl Diesel from the XF, which also is heavier than the target car.

There is a "replacement for displacement", its a Diesel with a Turbo.

EDIT 190ps, 332 lb/ft - although a remapped 1.9 TDI ASZ will make 350+ lb/ft.