Wikipedia
ScreenRacer
ScreenRacer is a 3D screensaver program for Windows 98, Windows XP and Windows Vista operating systems. The program was created by Lugnut Studio using 3Impact Engine Technology.
This 3D racing screensaver features NASCAR Voice acting from Jeff Hammond and Kenny Wallace. Many real life companies and organizations can be found on the tracks and vehicles. Several version of ScreenRacer are available from the official website, as well as a free demo to preview the program.