Although official pictures of the new BMW Z4 are not to come out for another 12 days, a showroom-prepped roadster was snapped and leaked to the public.

The first photo of a ready-to-sell BMW Z4 has leaked out of an undisclosed dealership. Not meant to be seen by the public until December 15th, the picture shows the final draft of the shiny roadster.

The BMW Z4 will sport an electro-mechanical differential called sDrive, and will likely have an additional engine option in addition to those already available. This new Z4 is thought to have 2.0-, 2.5-, and 3.0-litre engines, as well as a 3.0-litre twin turbo, and a massive 4.0-litre V8 from the M division.

Still uncertain is the auto show which will receive the new Z4 on a pedestal for its adoring public. The appearance of this photo makes us suspect a Detroit appearance may be imminent.

The new BMW Z4 will be produced at the Regensburg plant in Germany. The previous version was produced in Spartanburg.

Photo of Showroom Ready BMW Z4 Sneaks out of Dealership