I've owned Fords, Toyotas, Hondas, Nissans, Mazdas, a Chevy, a VW, a Mitsubishi, even a Mercedes.
All of them made noises some time. Usually they come and go. Sometimes
its related to temperature. Car is too hot, or not warmed up yet.
I've heard some strange noises in my new Focus too. But, they went away.
All of us are over sensitive when we get a new car. But relax, it's under warranty.
If the noise is serious enough, take it in and let Ford figure it out.
In the meantime, turn the stereo up a little, the noise will go away.
2012 Hatch SE, 5-speed, Rapic Spec 203A, Sport Package, 17's, Silver, Tuscany.