2010 Jaguar XJ spy shots – Click above for high-res image gallery

BMW is known for wrapping its prototypes in funkadelic patterns to obscure new design details. And, seeing as the car above is sporting a split-kidney grille, you would think that you're staring at a BMW prototype of some sort. Maybe the next-next-gen 7 Series or something. Well, that's what they want you to think. "They" in this scenario are engineers from Jaguar who have been caught testing the next-generation XJ flagship sedan. They've gussied up their prototype with enough BMW trappings to throw us off the scent, but thankfully our spy photographers recognized this large sedan's true identity. The fake grille up front is meant only to obscure the XJ's new fascia that's heavily inspired by the smaller XF sedan. Aside from the sloping roofline and a bit of the rear end, the real tell-tale tip offs are the cat-slit headlights and outer air intakes in the lower part of the bumper, both of which look very similar to the same elements on the XF. The new XJ is scheduled to go on sale in December, so while we wait for its official debut sometime between now and then, you can compare these new revealing spy shots to the official XJ teasers released by Jaguar in April at the Shanghai Motor Show.

[Photos: KGP Photography]