Sight
The Autobots could see a hundred times better than any human. They could see farther, with more clarity, and with a greater range of color than their allies.
Sam had seen through their eyes a handful of times, and he knew that humans were blind compared to them, but he often wondered if that was such a bad thing.
Being able to see better also meant being forced to see more fully all of the horrors of war, and Sam saw them just fine already, thank you very much.