This render was meant to be representive of the X5. Actually it is much closer to the BMW X1 . What you are looking at in the spy photographs is an evolution of today's highly successful X1. However the current car moves to the FWD UKL architecture in regards to increasing passenger room and more importantly X1 will feature xDrive.
If you look closer you can see the raised rear quarter light mimicking today's car.
This new X1 has a more sporty looking roofline , rising glasshouse and broader wheel arches. The next X1 will be unveiled in 2015 possibly in time for the 2015 IAA?