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Intercity Class 91

The British Rail Class 91 is a class of 225 km/h (140 mph), 4,830 kW (6,480 hp) electric locomotives ordered as a component of the East Coast Main Line modernisation and electrification programme of the late 1980s. The Class 91s were given the auxiliary name of InterCity 225. [can only go 100 mph]

you can choose between engine power to generators or wheels along with motor power to wheels.
all couplers use electric connectors to allow power to transfer to carriages. You can refuel it aswell.

Be sure to subscribe to the passenger carriages too.