+1, I would have thought everyone here has 'ragged' it at least once. The OP didnt ask what you thought of his driving, he asked what was wrong with his car and I know for a fact there would be no bangs coming from my car if I were to do that.
I would have thought it was just the limiter kicking in though, its quite harsh in the Zed compared to a lot of cars, maybe you hit the limiter and something from inside one of the glove boxes shot forward?