Global Urbanization - 3d max animation

I've been asked to make a quick animation of the buildings settling the miniplanet for the Neiberia platform (http://www.neiberia.com). For buildings I've used this amazing script by Tyson Ibele. The scene contains 96 buildings from 6 to 18 floor, total poly count for the scene is over 1,2 million. Rendering time with 480p skyline+raytrace on my laptop took 17 hours O.o

Here it goes (better watch on youtube)

Here goes one higher quality render of the scene