For starters, we'll look at some expanded descriptions of American units originally listed on MSipher's text Variations List. In most circumstances, I'll talk about variations that aren't on his list, but in my humble opinion should be, since they meet the criteria. And of course a hearty thank you to all the fine folks on the vari-quest mailing system, for being supportive, and constantly finding new variants for me to list. If it weren't for you guys, this list wouldn't be as complete as it is. That's the format.
Resistance is futile.
You will be assimilated. Look above for the whys and how-comes. Now You don't even wanna know how many variations we found on him. The title says it all, really. All the other Autobots, and all their various variants.