We can't blame you if you've lost interest in Jaguar's teaser videos on the upcoming 2010 XJ as the British firm hasn't really revealed anything interesting on its new luxury sedan in any of the films. Same goes for the latest video that features Jaguar's chief designer, Ian Callum vaguely talking about the new interior while we also get a quick glimpse of the XJ's front headrests, but that's about it. Watch the video after the jump and stay tuned on Carscoop as Jag's flagship model will be officially launched on Thursday, July 9.