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The blokes at Jaguar released this teaser image that just barely reveals a concept car company plans to unveil at the Detroit show in January. The mind reels. Could it be a conceptual rendering of the upcoming XF, which the company announced last week would replace the S-Type late in 2007? Will it hearken a new design direction for the ailing automaker? Will it have the taillights of a 1968 Pontiac Bonneville? Stay tuned.

Add XF to S, Delete S: New Jag Sedan to Drop in '08 [internal]