Christa Lehmann with Hidden Image captured this image and adds speculation that the running gear will likely be shared with the all-new X3 when that model debuts in 2010 or so. If they do share mechanicals, this X4 could debut at the same time. Not necessarily a bad idea, but the X3 and X5 already seem fairly close in size to warrant a new model between them. Who knows though, maybe this one will be just right. Click over to see the full size images, as well as a couple of renderings at WR that incorporate styling touches first seen in the upcoming X6 coupe.
[Source: Winding Road]