The Flexity Swift is a series of urban and inter-urban tram, light rail and light metro vehicles manufactured by Bombardier Transportation. It is part of Bombardier's Flexity family of rail vehicles, and like the others, Flexity Swift vehicles can be customized to suit the needs and requirements of customers including legacy designs from its acquisition of Adtranz.
Railly News reported that, by the end of 2015, more than 1000 Flexity Swift vehicles had been sold.
Vehicles in the Flexity Swift family vary in length, but are all articulated, usually with three sections. In most cases, the centre section is very short, but can be replaced with a longer section in order to increase capacity, as London is considering doing for future lines. The trams can also be coupled together into trains. Nevertheless, they are all bi-directional with cabs at both ends and doors on both sides. An emphasis is placed on speed with units capable of safely reaching speeds of 80 km/h (50 mph) when running on dedicated lines.