Trainbot

Trainbots are a subspecies of Cybertronians from the planet Cybertron

Biology
While also being a subgroup of Autobots, Trainbots consider themselves a species unto themselves.

Anatomy
Trainbots have similar biology to other Cybertronians, except that they transform into metro trains.

Powers and abilities
Trainbots share many of the same abilities as other Cybertronians.

Select Trainbots can combine to form a combiner known as Raiden.