Is the X-coupe concept from 2001 being revived and being studied for possible production? Yes, according to Scott26. With the Porsche Cajun and Land Rover Evoque small SAVs hitting (or scheduled to hit) the market, BMW is said to be considering an X-coupe type car with which to compete with. The X4 is also on the drawing board and marching towards production. Details inside.

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.

Scott26 provides further insight on the future X4′s design language and also discusses a potential future Sport Activity Coupe based on the X1 SAV, which would mix the essence of an X and Z car, much in the way of the old X-Coupe Concept.

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.

What does the future of the BMW X portfolio hold? According to insider Scott26, BMW is keen on a potential X4 (think smaller X6) which shares technology with the X3, an X3 35iS sharing engine from z4 35iS and 335iS, and an X3M with motor from upcoming 1M Coupe.