Shortly after driving it off the lot, we began noticing a clunk after you took your foot off the brake after a stop. Dealer denied any problem in the model until we got mad, and talked and talked to their head technician. He described the problem perfectly without even riding in the vehicle, then told us that all the GX470's were doing it. This must mean it is a manufacturer defect, and he says there is no "fix" for it right now, but they are working on it because they have had so many complaints.