On February 10th, 2005 I forgot to remove a coffee mug from the rear bumper where I left it. Later, I drove 16 miles round trip to visit a relative in the hospital. A short time later my son walked in with the mug asking how long I was going to leave it on the bumper of my Envoy. That is a true test of a smooth ride and handling. I would add that there are a lot of potholes in New England in February.