Hitachi Sirio

The Hitachi Sirio is a low-floor tram built by Hitachi Rail Italy, the company formerly known as AnsaldoBreda, and it was sold under the AnsaldoBreda name before the Hitachi takeover. The name is Italian for Sirius. It can be ordered as a one-directional or bi-directional vehicle and for a variety of track gauges, which is why the type appears in very different cities. Milan's transport company ATM runs 48 seven-section Sirios of the 7100 series and a larger group of shorter five-section Siriettos, built for Milan's unusual 1,445 mm gauge with a top speed of 70 km/h. Bi-directional Sirios serve Bergamo, Florence, Naples, Sassari and Athens, while Gothenburg in Sweden ordered 40 one-directional trams as the M32 class, whose late delivery and corrosion problems ended in an arbitration award in 2017.