RhB car B 2491 (EW IV - Bernina series), built 1992 by SWA and SIG. These cars exist in two lengths, the Bernina cars (A, B and BD) are 16.45 m long, the non-Bernina cars (A, B) are 18.5 m long and offer one seating group more. All are equipped with cogwheels for the mgb line. St. Moritz, 2009-02-14.