The technical goal of the 3D page was clear: how do I display as many car meshes as possible without dropping performance. The Dutch site visualizes traffic speed and flow on the highways in The Netherlands, based on real time open data. David, David, Pierre and all other contributors, thank you for providing a great engine!
Data visualization is probably not the main objective of the Babylon engine, but that is the beauty of a good library: it serves multiple purposes. A real time traffic visualization, that's what I used Babylon for.