are the Alstom Citadis family (particularly the RegioCitadis, Citadis Dualis, and Citadis Spirit variants), Siemens's S70/Avanto, SD100/SD160, SD400/SD460 and S200, and Sirio from AnsaldoBreda. Compared to Bombardier's other Flexity vehicles, these vehicles are not designed for streetcar operation with extensive mixed-traffic operations, although they do operate as such on a number of systems such as in London, Manchester, and Melbourne. Technical specifications Low-floor versions High-floor versions See also Bombardier Flexity Freedom References External links Flexity official site About London's trams (unofficial) Tram vehicles of Germany Tram vehicles of the Netherlands Tram vehicles of Sweden Tram vehicles of Turkey Tram vehicles of the United Kingdom Streetcars of the United States Bombardier Transportation tram vehicles Manchester Metrolink Articulated passenger trains Train-related introductions in 1995