The smile Naomi flashed him could have powered all of B.A.B.E.L.'s facilities in the event of a worldwide blackout, but she didn't waste time-- just in case he changed his mind. Moving a car was one thing, but moving a sentient one was something else entirely, and the last thing she wanted to do was to hurt him.

It took a very strict level of focus to keep her psychokinesis to a point where she could lift him, but also to keep it steady, so that she didn't accidentally crush him in the process. And, miraculously, she managed, flying just above him and drawing the Autobot along with her to the roof.