Costantine consults with track workers while the race roars on.  The first three cars look like Jim Jeffords in the long-tailed Birdcage  Maserati, Augie Pabst in the Scarab, and Carroll Shelby in the red Birdcage.  The fourth car looks like a Porsche Spyder and could be one of several.  (The Porsche looks like a 550 rather than an RSK or RS60: 17th place finisher Jack McAfee  drove the only 550 in the race.)

Note wreckage of Hulette's Lister and the charred grass across the track.  Also, don't both of these defunct Listers look to be in dangerous locations?