This open bi-level autorack was modified by Ringling Bros.® to fit their specific needs. Autoracks carried autos, wagons with lighting, concessions and other equipment to the next arena. Ringling Bros. and Barnum & Bailey ® Circus 84710 was located with the RBBX Red Unit Train in October 1999. Flatcar is lettered for RBBX and racks are stenciled with two Red Vintage Globes, one toward each end.