This rendering looks convincing enough but isn't quite accurate, at least not for the U.S. If we get the F11 BMW 5 Series wagon, and that's a big if, it would likely be in primeval 2011 and it would again be the BMW 535xi, i.e., all-wheel-drive only.

But here's what a graphic artist thinks the 5 Series waon might look like: You take the 7 Series-esque lines of the 2011 BMW 5 Series sedan and graft a 3 Series wagon-esque heinie on it.

BMWBlog

First Look: 2011 BMW 5 Series