There is no other way to say this: This is great.
And the inevitable direct link to the Vid.
Info from the Youtube website: 1000 Races were recorded and displayed simultaneously for this unique and absolutely stunning video. This video was created using the video game Trackmania Sunrise.
First Released in March 2006, it was made famous in September 2006 when the video was shown at GameTrailers.com where it reached, in spite of the poor quality of the flash format, over 1.5 million views.
Have a nice sunday! :)
(by the way: The 1K project soon launched 2K, 3K, 4K, 5K, 6K … vids)