When getting our new van we are going to have the tracker fitted for security. Also we will use wheel clamps. My husband was worried that the wheel clamps will be added extra weight in the van when we go on holiday. I suggested that we only use the clamps whilst the van is on our drive then leave them here so hence no extra weight. He seems to think that you need them on your van whilst on caravan sites as anyone can come along and just tow your caravan away if you go out for the day. I am trying to tell him that I cant see that happening....Does anyone know if this does occur?