Class 170 [Updated]

The Class 170 Turbostar is one of the largest fleets of new generation DMUs built post-privatisation. The Class 170 typically operates on regional and long-distance (cross country) services and is a development of the Class 168 Clubman DMU [1]. Indeed later built 168s and 170s have a very close resemblance (some Class 170s have been re-classified as Class 168/3s - see photo below). The follow-on Turbostar DMUs Classes 171 and 172 also look near identical meaning the Turbostar "look" is a very common one on British rails.

Information
Number built: 331 (122 2 and 3-car sets)
Built: 1998-2005
Builder: ABB Derby / Bombardier Derby
Engine: MTU 6R 183TD13H diesel per car
Power: 1, 266 hp (945 kW) / 844 hp (630 kW)
Formation: Typically Driving Motor Standard Lavatory (DMSL)+Motor Standard (MS)+
Driving Motor Composite Lavatory (DMCL) or DMSL+DMCL
(170/3): DMCL+Motor Standard Lavatory Restaurant Buffet (MSLRB)+DMSL
(170/4): DMCL+MS+DMCL

The Class 170 is used throughout the rail network, the largest fleet is operated by ScotRail but Cross Country and London Midland also have sizeable fleets. Greater Anglia are the other current operator. Previous operators include South West Trains [2], Hull Trains and First TransPennine Express.

There are a number of sub-classes though all share the same specification and equipment. The differences being in seating arrangements.
X Country 170 518 at Tamworth

London Midland 170 634 at Barnt Green

X Country 170 397 at Derby
Former TPE Class 170 now Chiltern Class 168 325 (at Lapworth)

[1] Colin J Marsden, DMU and EMU Recognition Guide (Ian Allan, 2013) p. 154
[2] John Balmforth, South West Trains (Ian Allan, 2011) p. 58