More on Draft Track:

The University of Washington says its computer scientists have developed software to illustrate the drafting effect of NASCAR race cars. The university says the technology was used by the Sportvision company of Chicago and ESPN to create “Draft Track.” It uses fluid dynamics math algorithms to create real-time displays of colors trailing behind cars. Green, blue, yellow and red correspond to different speeds and directions for air flow. It shows viewers how drivers can use drafting to save gas or pick up speed.(AP/Seattle Post-Intelligencer)(8-10-2007)