Visually, the XJ features full LED headlights, revised graphics for the tail-lights, and a slightly larger and bolder grille.
Spearheading the revised range is an updated 3.0-litre turbo-diesel V6. This motor now boasts some extra power (220kW versus 202kW) and a bucket load more torque (700Nm versus 600Nm). Under the EU test cycle, fuel consumption said to drop from 6.0L/100km to 5.6L/100km.
On the inside, the XJ can be specified with the company's InControl Touch Pro infotainment system that comes complete with a 60GB solid-state drive, multi-touch touchscreen, satellite navigation, smartphone app connectivity, a quad-core Intel processor, Gracenote album art and music database, Bluetooth connectivity, and a range of customisation options.
Buyers of top-shelf variants can also enjoy a 1300W Meridian Digital Reference sound system with 26 speakers. Also available is a rear-seat entertainment system comprising two fold-away 10.2-inch high-definition screens, digital TV reception, two USB ports, an HDMI jack, and an extra 100GB of storage space.
The updated XJ will be available six specifications: Premium Luxury, Portfolio, R-Sport, XJR and Autobiography. The R-Sport and Autobiography are new additions to the lineup.
Aside from the aforementioned 220kW 3.0-litre turbo-diesel, these other engines will be available in the Australian XJ range: a 250kW 3.0-litre supercharged V6 petrol, and 375kW and 404kW versions of the 5.0-litre supercharged V8. All Australia-bound XJs will feature an eight-speed ZF automatic transmission and electric power steering.
The 177kW 2.0-litre turbocharged four-cylinder petrol and 345kW 5.0-litre supercharged V8 engines will not be available down under. In lieu of all-wheel drive, which is available overseas but not in Australia, All-Surface Progress Control is able to restrain throttle inputs and automatically apply the brakes to ensure smooth progress on slippery surfaces.
Other safety technology available includes adaptive cruise control with queue assist, blind spot monitoring and close vehicle alerts, semi-automated parking for both parallel and perpendicular spots, and a reversing camera and parking sensors.
The revised XJ goes on sale in Australia from November 1, 2015. Prices will begin from $199,900, excluding dealer and statutory charges.
Detailed specification and pricing will be announced closer to the car's launch down under.
Note: An earlier version of this article erroneously stated that the Luxury trim and Ethernet connectivity were going to be available in Australia. This has been corrected.