My new 3 periodically makes a sound that brings a tear to my eye. I've heard it a couple of times, once during wheel hop and another time when I hit a really sharp (abrupt) yet small bump. It almost sounds like it is hitting the bump stops, but it is a really odd "hollow" sound. It's quite loud, and is more of a popping noise than a clunk. That's a crappy description, but I was wondering if anyone else has heard the noise, or has any theories about its origin.