Ultimate Autobot

The Ultimate Autobots were proposed in the Marvel Comics UK portion of the Generation 1 continuity family.

THERE IS NO PLACE TO RUN, ALL THE FUSES IN THE EXIT SIGNS HAVE BEEN BURNED OUTTTTTT!!

There will be no dedicated Autobot warriors!
That is my decision.Optimus Prime, Crisis of Command!

Most Autobots were created for other purposes before choosing to turn their skills to fight the Decepticons. By contrast, the Ultimate Autobots would have been created for no purpose other than war, with an intent of forcing a swift, brutal end to the war that would do less harm to Earth than a prolonged struggle.

The proposed design for the Ultimate Autobots appears to be some variant of the common Guardian Robot theme. They may have been the template for Grapple's Omega Supreme.

Fiction

Marvel Comics UK

In response to the Decepticons' creation of the Constructicons, Prowl suggested that the Autobots use the Creation Matrix (now back in their possession) to create their own super-soldiers, the Ultimate Autobots, and wipe out the Decepticons. Optimus Prime refused, haunted by the vision of the Autobots strip-mining human energy sources to fuel these juggernauts. He felt the ends did not justify the means; humans must be protected first, and he vowed to never create new life simply to bolster their fighting force.

Prime waffled on this decision as Prowl continued to argue the merits of a swift, decisive victory, but eventually reaffirmed his refusal to pervert the purpose of the Creation Matrix. Crisis of Command!

This moratorium on creating new warriors remains in place until Second Generation!, when the Matrix itself sends Prime a magic vision saying "No seriously, I'm fine with you creatin' new killing machines, go for it!" His angst over the Aerialbots' suitability as Autobots in "Aerialbots over America!" stems from this conflict.