“The Transformers are designed so that their faces/bodies resemble the symbol of their faction. The Autobots (especially Optimus Prime, Bumblebee and Ratchet) were modelled according to the Autobot face; and the Decepticons (especially Megatron, Barricade and Blackout) were modelled according to the Decepticon face.” IMDb trivia I thought it was a really cool visual cue to utilize: make the Autobots and Decepticons resemble their faction symbol. It was a move which worked so well that ANIMATED and PRIME copied the cue into their Transformers design. Practically, they needed a sort of guide to make sure the robots didn’t look like a jumble of parts, but rather like appropriately armoured robotic beings. The alt modes and bios would have done just as much, but still it was an inspired move to make them actually look like their insignia. Visually, most of the Transformers didn’t really bear their insignias in the films (it was only Bumblebee, Barricade, Ratchet, Optimus Prime, Starscream, Skids/Mudflap in ice cream truck mode, the Fallen, Mixmaster, Wheelie, Jetfire, Devastator, Sentinel Prime), so it was necessary to give them designs that would reflect their allegiance. It was awesome how the VFXperts incorporated a variety of unique features based on the insignias: - Bumblebee with antenna - Ratchet with a walrus moustache - Starscream with a beak/rooster crest - Soundwave with mandibles - the Twins each being half an Autobot face - Wheelie and Jetfire resembling both insignias to reflect their changed allegiance (though Wheelie was eyes and a mouth, and Jetfire had a beard and crazy hair) - Brains having a duck-bill (although he doesn’t exactly resemble either insignia) - Que having a bald head, a moustache and glasses - the Dreads having dreadlocks, fangs and mandibles - the Wreckers resembling NASCAR fans (Leadfoot with a beard, Roadbuster with a cap and Topspin with a mullet) - Interestingly, if you look at Optimus Prime and Megatron, their features are generally the same as their original G1 versions, but their faces/bodies have been tweaked to resemble their faction symbol. All in all, it was a great idea to utilize IMO.