I have just bought a new Seat Alhambra and had the tow bar fitted as extra.The garage here in Switzerland are unable however to fit the extra hook I require to attach the car to the trailer with the security wire. I do not know the name in English, but in German it's a 'Halter für abreissseil'
Any ideas of the best one to buy?
Don't think this type (which I imagine you would be able to source locally) would be suitable for a towbar with a detachable swan-neck towball, but should be OK otherwise (using one of the existing bolts)?
There's a very recent thread here discussing the legality of wrapping the breakaway cable around the towball.