Picture did finally post with my last posting.  Sorry about that.  Anyhow, the cabinet is indeed a conversion of a pacman cabinet.  I can make out what appears to be the remnants of pacman artwork on the front kick panel.  I will look tonight and see if I can detect any copyright notice or company on the racing artwork.   Sidenote, appears cabinet has been at least 3 different games.  The monitor in it (don't know if it works, not compete, and don't have any boards) has screen burn in from what appears to be a golf game, then there is the racing artwork, and under that appears to be pacman artwork.