Bombardier Turbostar

Bombardier Turbostar
Class 170 in CrossCountry livery, westbound towards Leicester
In service	1998–present
Manufacturer	Adtranz (1997–2001) Bombardier (2001–2011)
Built at	Derby Litchurch Lane Works
Constructed	1997–2011
Number built	206 sets
Formation	2, 3 or 4 carriages per set
Capacity	Varies depending on number of cars and seating configuration, see individual articles for details
Operators	Chiltern Railways CrossCountry East Midlands Railway Northern Trains ScotRail Southern West Midlands Railway
Specifications
Car length	23.62 m (77 ft 6 in)
Width	2.69 m (8 ft 10 in)
Height	3.77 m (12 ft 4 in)
Maximum speed	100 mph (160 km/h)
Weight	Varies depending on number of cars and seating configuration, see individual articles for details
Traction system	Hydraulic transmission (168/170/171) Mechanical transmission (172)
Prime mover(s)	MTU 6R 183TD13H (168/170/171) MTU 6H1800R83 (172)
Safety system(s)	Various combinations of ATP, AWS, TPWS, Tripcock system
Coupling system	BSI[1]/Dellner couplers (Class 171, see below)
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge

The Bombardier Turbostar (sold as the ADtranz Turbostar until 2001) is a family of diesel multiple unit (DMU) passenger trains that was built by ADtranz and later Bombardier Transportation at Derby Litchurch Lane Works in the United Kingdom between 1997 and 2011. The Turbostar was the first new train type to be introduced after the privatisation of British Rail. The first units were ordered by Chiltern Railways in 1996 and were designated Class 168 (also known as Clubman). Since then the family has grown with the addition of the Class 170, Class 171, and the Class 172.