The class 40's are a 2000 hp V16 diesel electric, one of the class 's claim to fame was it hauled the mail train that got robbed in 1963, the loco on that train is in preservation, think its in the Midlands
Martyn
Link on info of loco involved ,great train robbery 1963
This was probably the most famed diesel loco, but for all the wrong reasons. On Boxing Day 1962 it was hauling the up Midday Scot when it collided with the rear of a Liverpool to Birmingham express due to driver error, killing 18 passengers and injuring 33. On 8th August 1963 it was hauling the overnight West Coast Postal and became involved with the 'Great Train Robbery'. In 1964 a secondman was electrocuted by the overhead wire while working outside the loco. Finally, in 1965 the loco suffered total brake failure on the approach to Birmingham New Street. Luckily in this case, the train was diverted into another platform at the last minute by a quick-thinking signalman, and smashed into the back of a freight train, injuring only the guard.
Cut up at Doncaster Works BREL in April 1984
http://www.railblue.com/pages/Class%2040/40126.DN.010484.htm