The DS 9 is a leftfield alternative to the usual executive saloons, prioritising comfort, refinement and distinctive French design over sporty handling. Its plug-in hybrid powertrains deliver smooth and quiet progress on long journeys, plus impressive efficiency if you remember to charge the battery. Meanwhile, generous equipment and a plush interior give it genuine luxury appeal. It isn’t as sharp to drive or as desirable as German alternatives, but as a rare and characterful used car, the DS 9 offers something refreshingly different.