Jaguar will use this year Los Angeles Motor Show to unveil the 2013 XFR-S performance model. Making its global debut at the show, the XFR-S model is the fastest and most powerful saloon Jaguar has ever produced.
The car will retain the supercharged V8 5.0-liter engine but tweaked to output approximately 540 hp and 501 lb-ft (680 Nm) of torque. This amount of power should enable the XFR-S to hit 62 mph (100 km/h) in 4.5 seconds, before reaching a top speed of 180 mph (290 km/h).
The teaser reveals a new body-kit, that includes a more aggressive front bumper, LED-infused headlights, bigger side skirts and front fender vents, ventilated hood and a huge rear wing.

Source: Jaguar