The "DeAngelo Williams 2005 race car" refers to a promotional die-cast model created by the University of Memphis to boost his Heisman Trophy campaign. While there was a real car designed for the promotion, a specific 2005 race car was not used for this purpose; instead, the campaign focused on miniature models and connecting Williams to racing through a "Heisman race" metaphor. 

• Promotional campaign:

  In 2005, the University of Memphis created a promotional campaign linking DeAngelo Williams to auto racing to promote his Heisman candidacy. 

• Die-cast models:

  As part of this campaign, the university ordered over 3,500 1:24 scale die-cast race cars to be mailed to Heisman voters. 

• Metaphorical connection:

  The campaign used a racing metaphor to describe his quest for the Heisman Trophy, placing him "at the starting line" for the "greatest race of his career".