Transformers: Timelines
A series of stories printed by Fun Publications, set in a variety of continuities, the Autobots of alternate worlds can vary greatly from the classics Autobot image. In the Transtech storyline, the Autobots and Decepticons are merely political factions on a Cybertron which never broke out into war. Lines between good and evil are more blurred.
In the Shattered Glass storyline, a group of Autobots, led by Optimus Prime, are the mirror images of the personalities of most Autobots. In this world the Autobot logo is purple, and worn by evil Transformers who seek to destroy the universe, and are opposed to the heroic Decepticons.
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