The Jaguar XK (project code X150) is the second generation of the Jaguar XK grand tourer from Jaguar Cars. The vehicle was unveiled in 2005 at the Frankfurt Motor Show with the first generation's 4.2-litre V8 engine. A facelifted XK was launched in 2009 with a new 5.0-litre V8. In March 2011, with the launch of the 542 bhp (404 kW; 550 PS) XKR-S at the Geneva motor show, Jaguar revealed the details of a facelift for the XK. The new specification includes front and rear styling changes and internal trim changes.