The Rotterdam Citadis is very different from the ones I am now working on; the side walls are straight instead of curved, the doors are situated differently, it is uni-directional, and so on; it is a completely different vehicle.
Not like the other mentioned Citadis variations, where only the front end differs (and the rest of the tram are standard modules), and many of those front ends are (at least the exterior shape) available on 3D Warehause.