What is it?
You’re looking at the quickest version of Jaguar’s new limo, but it’s got a different name. There’s no Jaguar XJR in the new big-car range, even though the outgoing car had one. It’s allegedly because the marketing types reckon this car’s sheer size - you can get it in both short and long wheelbase versions - limits its outright sportiness in comparison with the XKR and XFR, and possibly because the whole ‘R thing’ may now be under review, given that Honda and Volvo, among others, use much the same nomenclature.
However, far be it from Jaguar not to provide a top-performance version of any new model. This quickest XJ is a 503bhp supercharged V8 which develops more torque than any other model, even the diesel, and which the figures say can hurl you from 0-60mph in just 4.7sec, which is not far short of a Ferrari’s time. Top speed is still limited at the usual 155mph, though the car would doubtless be good for 170mph-plus in ungoverned form.
What's it like?
Despite the extra potential, the most remarkable thing about the Supersport is its similarity to the rest of the XJ range; it uses the same tyre size, the same suspension bushes and rates, the same controls and instruments.