There's been plenty written on this site, recently, about Jaguar's performance models (XKR and XFR) and the shedding of the brand's stuffy image. Well, here's the latest Jaguar, (they're coming thick and fast at the moment) to be handed a pair of running shoes -- enter, and quickly too, the XJ Supersport LWB (it's also available as a Short Wheelbase model) visit mynrma.com.au for the review