[Kiritsugu holds up his empty hands, showing how unarmed and defenseless he is. It's entirely true, as much as he dislikes being vulnerable in a strange place. Supposedly he received powers here, but he has no idea what they are, or how to use them.]

They're vehicles. [He's going to make a wild guess and assume this person doesn't know what cars are. Somehow. Who knows what's possible here?] They're going too fast to stop if you jump in front of them. [There's no judgment in his tone. If he didn't know what a car was, he'd probably be just as bewildered.]

I just got here myself, but I hear it's called the City. [He gives an apologetic shrug. Yeah, he didn't make up the uninteresting name.] I read some pamphlets that had more info, if you're interested--not sure if you're the pamphlet reading kind, but I could try to sum up.