The procession begins with the Armadillo Aerospace crane truck, followed by the Scorpius rocket module, then a fuel truck towing what I believe is a methane fuel cell. I don't know what the function of the silver SUV is. The red vehicle apparently contained the X Prize judges. After these vehicles are enroute to the launch pad, located 1500 feet from the spectators, a fire engine takes up position at the far end of the spectator area.