The Jaguar XFR-S Sportbrake has been spied for the first time ahead of what we believe to be a September launch at the Frankfurt Motor Show.

We weren't aware Jaguar was planning a more practical XFR-S but these spy shots depict the Sportbrake model which will come with a larger boot. It's easy to see this is the hotter version thanks to generous air intakes, beefy diffuser, a quad exhaust setup, large alloys with low-profile performance tires, bigger brakes and the badging at the back.

The XFR-S Sportbrake will borrow the sedan's supercharged V8 5.0-liter engine which produces 542 bhp (405 kW) and 680 Nm (502 lb-ft). The regular 2014 XFR-S equipped with the eight-speed ZF gearbox does 0-62 mph (0-100 km/h) in 4.6 seconds and an electronically-capped top speed of 186 mph (300 km/h). The Sportbrake version will probably be a tad slower in the 0-62 mph sprint due to the added weight.

Jaguar XFR-S Sportbrake spied for the first time