Lancasters in Chelmsford did a second key for me. It was around £100 for the key - labour was added to the service invoice so I can't say how much that part of it was. I had to show my V5, driver's licence and the red card from the owner's manual.I too have only one key. I would like to have another but costs £350 in UK plus half hour labour for programming. Sounds like BS. I'm sure there is a cheaper option on the bay. Can anyone chime in whether a used key can be reprogrammed and the blade can be changed?