be mounted below the floors of single-level cars. With the two Hi-Level prototypes in service proving to not only meet the needs of line but also being popular with passengers, the Santa Fe again approached Budd with the idea of building additional two-level cars. Budd developed another generation of cars for Santa Fe in five different configurations: step-down coaches like the two prototype cars, convertible coaches which could have one end of the car converted from the high level on both ends to a step-down car as needed, coaches with both ends of the car having the end door at the upper level's height to provide access to adjoining passenger cars, and dining and lounge cars (with kitchens on the lower level) with partially glassed-in roofs similar to the Big Dome lounge cars that were also built by Budd and delivered around the time the prototype Hi-Level cars were built. The order for additional cars was placed in March 1955 for 10 68-seat step-down coaches (delivered between December 1955 and January 1956 and numbered 528 to 537), 25 72-seat Hi-Level coaches (delivered between January and April 1956 numbered 700 to 724), six 60-seat bar/lounge/news-stand coaches with 26-seat lower-level lounges (delivered between May and June 1956), and six 80-seat dining cars (delivered between June and August 1956 numbered 650 to 655). With these cars delivered, the Santa Fe re-equipped the El Capitan, the only coach train operated between Chicago and Los Angeles, and assigned some to the Chicago–Galveston, Texas Texas Chief line. An additional 12 step-down coaches, numbered 538 to 549, and 12 convertible coaches, numbered 725 to 736, which were ordered in November 1962 and delivered between December 1963 and April 1964. Later years Budd continued to build gallery passenger cars for Chicago-area commuter service on the Burlington Route (and Burlington Northern after the merger), Rock Island, and Milwaukee Road lines during the 1960s and 1970s; most of these cars are still in service on today's Metra routes. The Santa Fe cars were the inspiration for the Amtrak Superliner and Superliner II which ply the rails on many different routes today, though they were not a product of Budd. Stainless steel Budd cars originally built for the Canadian Pacific Railway's 1955 train The Canadian are still in service with Via Rail Canada. Since 1951, two formations of six Budd cars operated by Ferrobaires have run a weekly service called "El