And the summer. The road crews can only do so much to fix winter road rot. Segments of the road can also rise and sink slightly, not to mention that bridges typically aren't level with the rest of the road (which is why you sometimes get that "weightless" feeling when you cross off of a bridge while driving at freeway speeds). Most cars have a relatively loose suspension so you really don't feel that sort of thing very much. A high-end exotic like the S7, however, would have an extremely tight suspension to handle fast turns and the like, so all you'd wind up doing is bottoming out.