The “0 Prototype” featured and teased prominently in the recent Plan 0 video (a look into BMW’s secret prototyping process) is likely to be the future BMW X4 SAV, which will take on the coupe SAV look of a baby X6, albeit in smaller form. Evidence comes via Scott26’s words, the presence of personnel from the Spartanburg plant (where X models are produced), and close resemblance to speculative X4 renders.

Here is the first official sketch preview of the upcoming BMW X4. The sketch features the rear view of the X4 concept and reveals a sleek SAV with many of the design aspects already mentioned by BMW insiders.

At a marketing presentation with the F25 X3 project leader, it was revealed that the BMW X4 Concept will be presented sometime next year, with production in 2013-2014. The X3 lineup may also be expanded soon with an X3 M, xDrive35is, and Active Hybrid versions.