Hi Folks driving home yesterday doing about 140kph and I got a sound like a flat tyre or like I was driving on a rumble strip it felt like something let go (broke) I let of speed and the noise vibration stopped so I pulled over and popped the bonnet there was a slight smell of burning and some smoke from the belt oppisite the rad on the right as u look down and a small amount of water under the big hose underneath that belt I sat for a while and then drove to the mechanic and left the car there I had no warning lights and the car did not overheat any ideas many thanks John L.