In all of Tony's (rather magnetic, thank you) arrogance, he could believe that. Cap could talk bad guys out of being bad guys, and he didn't even work at being charming. Tony practiced. Not that it ever kept him out of a fight for very long; it was difficult to determine the point of success when the next step wasn't a sloppy make-out session in the backseat, and easy to overshoot.
Damn, had he already missed the mark? He only glanced at her out of the corner of his eye in an attempt to judge, but it didn't tell him much. It didn't help that his attention strayed to appreciating the musculature of her arm. Eyes on the road, Tony. Navigating the winding cliff face of coastal California isn't as easy on four wheels that it is in the air. That's what prayers are for, floor it.
They didn't have to travel very far or any more inland to roll up to a salt-faded building overlooking the ocean, a good 60 foot drop below, and a spectacular sunset. Standing in the carefully restrained garden, the music from inside could be heard distantly without the crash of waves to cover it in the twilight stillness.