A 1994 Peterbilt truck has been converted into an Optimus Prime replica of the 2007 film version of the Autobot leader.  It's up for grabs for over $50K at eBay Canada.  The ony major downfall is that it does not transform into a robot.  Link to eBay auction.  [via ComNetSlash]

Previously:
Optimus Prime birthday cake, Optimus Prime Cake, 40 foot Optimus Prime statue (LwL)