he's not really strong enough to lift that car, he's doing it with his mind
/me blinks
Err, from a physics perspective, that doesn't help. Moving an object, whether directly or -- theoretically -- by telekinesis, takes energy. (Actually, to see this idea dealt with well, read Anne McCaffrey's
Talent books. Her telekinetics draw energy from electrical generators.)
Auras aren't particularly defensible in real-world physics terms either. But then again, as Paul said
this is comic book physics. <g>