In this movie, you add cars and buses with the intention of animating them. Prior to that however, you learn to randomize the body colors of the various cars for more variety.

Revit Interoperability - Part 16

The official learning channel for Autodesk® 3ds Max® software, a comprehensive 3D modeling, animation, rendering, and compositing solution for games, film, and motion graphics artists. The Autodesk® 3ds Max® Learning Channel provides tutorials of all levels to help you learn Autodesk® 3ds Max®.