Could it be everything fans of the XJS wish Jaguar had once built for itself ... rear diffuser and ducktail spoiler helping to keep the Supercat stable at speed. The design has been created ...

British engineering firm TWR Performance has revealed an outlandish, 600bhp reworking of the Jaguar XJS as its debut production ... feeding into a sizeable ducktail spoiler, with flics on each ...

TWR has revealed the Supercat, which is based on a Jaguar XJS and sports an aggressive carbon ... a ginormous diffuser and a protruding ducktail spoiler, while the motorsport-inspired look is ...