has released a brief teaser clip of a new vehicle it is set to unveil at the Detroit Auto Show on January 14. We don't know at this point whether it'll be a concept or a production model, but Infiniti is calling it the Q50. Replacing the G37 sedan (pictured), the new Q50 is expected to borrow underpinnings from Mercedes-Benz
. Sources expect a V6 engine with possible direct injection, upheld by the engine note in the video clip. Otherwise all you see is the aggressive shape of the headlight.