The Bombardier BiLevel Coach is a bilevel passenger railcar currently built by Alstom and previously by Bombardier, Hawker Siddeley Canada, the Canadian Car and Foundry (Can Car), and the UTDC. Used by North American commuter rail operators, they hold 360 passengers and feature a distinctive octagonal profile. History The BiLevel coaches were designed by Toronto's regional commuter rail service, GO Transit and Hawker Siddeley Canada in the mid-1970s as a more efficient replacement for GO's original single-deck coaches and cab cars. Later coaches were manufactured by Urban Transportation Development Corporation/Can-Car and, most recently, Bombardier. Alstom purchased Bombardier in 2021 and now owns the designs and manufacturing facility. There are more than 1,500 BiLevel coaches in service today, all of which have been built in Thunder Bay, Ontario. The coaches have gone over numerous design changes over the years, originally featuring more shorter windows and larger intermediate levels featuring the washroom on the aforementioned level, and 162 seats in the original series'. Now featuring fewer taller windows, smaller intermediate levels, 136 seats, and a fully accessible washroom on the lower level. The exterior was also changed from being riveted fibreglass sides to being welded steel panels featuring a cleaner look. Construction BiLevel coaches have an aluminum body on a steel frame. They are high, wide, and weigh about . They hold 136–162 seated passengers and 276 standees (depending on coach series and seat configuration) and have two pairs of doors on each side Some of the newer coaches have electrical outlets for laptop computers and other devices along with small tables. Newer coaches feature 2 outlets and 2 USB ports at every other seat. All newly built coaches since 1990 have a fully accessible washroom on the lower level; the original coaches for GO Transit have the washroom on the intermediate level in the same location as where the cab is located in cab cars, one prototype coach featured both the intermediate level washroom and the fully accessible lower level washroom, the intermediate washroom now being removed. The washrooms feature a stainless-steel chemical flush toilet, sink, mirrors, waste receptacles, air dryers, and occupancy lamps. The lower level washroom is accessible, featuring wide doors and grab bars. The older intermediate level washroom is much smaller in size. Older coaches featured water fountains and cup dispensers on the intermediate level connected to the washroom, which were removed due to harmless bacterial contaminations found