Black and white camouflage across the test car's front bumper does little to disguise its ground-hugging lower lip and aggressively styled air intakes that are identical to those of its XFR-S sedan sibling.
Like the sedan, the Jaguar XFR-S Sportbrake will feature the British brand’s 404kW/680Nm 5.0-litre supercharged V8 petrol engine and eight-speed automatic transmission.
The super station wagon is expected to come close to – if not match – the performance times of the XFR-S sedan, which sprints from 0-100km/h in a claimed 4.6 seconds and powers on to an electronically limited 300km/h top speed.
The XFR-S Sportbrake inherits its 20-inch alloys and specially developed Pirelli tyres from the sedan, and is also expected to benefit from a number of the suspension and chassis tweaks developed for the four-door, including revised spring rates and retuned adaptive dampers, and recalibrated active electronic differential and stability control settings.
The Jaguar XFR-S Sportbrake is expected to debut at the Frankfurt motor show in September where it will officially announce itself as a challenger to the Audi RS6 Avant and Mercedes-Benz E63 AMG Estate.
Jaguar Australia late last month confirmed it would offer 2.2-litre four-cylinder and 3.0-litre V6 diesel versions of the XF Sportbrake in Australia from early 2014.
The XFR-S sedan will arrive in Australia in the final quarter of this year and, though Jaguar is yet to officially confirm its existence, the XFR-S Sportbrake is likely to be available to local customers if demand exists.