The Class 221 Super Voyager is a class of tilting diesel-electric multiple-unit express passenger trains built in Bruges, Belgium, by Bombardier Transportation in 2001/02.
The Class 221 are similar to the Class 220 Voyager units, but were built with a tilting mechanism enabling up to six degrees of tilt to allow higher speeds on curved tracks, most have five coaches, and they have a different bogie design. They have a maximum speed of 125 mph (200 km/h).
Currently these trains are divided between two operators, Avanti West Coast (20 sets) and CrossCountry (24 sets). The sets operated by CrossCountry had their tilt function disabled in 2008 to improve reliability and reduce maintenance costs.